9 = 4t what is t please help me

Answer:

0.60

Step-by-step explanation:

Answer:

.60

Step-by-step explanation:

Answer:

225 red cars & 375 white cars  

Step-by-step explanation:

According to the specified ratio, there are 225 red cars and 375 white cars in the parking lot.

The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

given, There are 600 cars in the parking lot. The ratio of red cars to white cars is 3:5. let ratio is in the term of variable x

Thus,

3x + 5x = 600

=> 8x = 600

=> x = 75

Total number of red cars = 3x

Total number of red cars = 3 * 75

Total number of red cars = 225

Total number of white cars = 5x

Total number of white cars = 5*75

Total number of white cars = 375

Therefore, there are 225 red cars and 375 white cars in the parking lot as per the given ratio.

Learn more about ratios here:

https://brainly.com/question/13419413

#SPJ2

Answer:

1) 7/8     8/7

2) 4.4

3) 3.7

4) 2.8

Step-by-step explanation:

Length of bottom side of Figure A: 8 cm

Length of bottom side of Figure B: 7 cm

From Figure A to Figure B, the scale factor is 7/8.

7/8

8/7

5 × 7/8 = 35/8 = 4.375

4.4

3.2 × 8/7 = 3.657...

3.7

3.2 × 7/8 = 2.8

2.8

Answer:

The answer is A.

Step-by-step explanation:

Since it is a square we are finding the area of, we are multiplying two numbers. Which means 1/3 by the power of 2.

The graph of the function y = 1/3x - 2 is added as an attachment

From the question, we have the following parameters that can be used in our computation:

So, the equation is

y = 1/3x - 2

The above function is a linear function that has been transformed as follows

Next, we plot the graph using a graphing tool by taking note of the above transformations rules

The graph of the function is added as an attachment

Read more about functions at

brainly.com/question/2456547

#SPJ1

I've been tryna call

I've been on my own for long enough

Maybe you can show me how to love, maybe

I'm going through withdrawals

You don't even have to do too much

You can turn me on with just a touch, baby

I look around and

Sin City's cold and empty (oh)

No one's around to judge me (oh)

I can't see clearly when you're gone

I said, ooh, I'm blinded by the lights

No, I can't sleep until I feel your touch

I said, ooh, I'm drowning in the night

Oh, when I'm like this, you're the one I trust

(Hey, hey, hey)

I'm running out of time

'Cause I can see the sun light up the sky

So I hit the road in overdrive, baby, oh

The city's cold and empty (oh)

No one's around to judge me (oh)

I can't see clearly when you're gone

I said, ooh, I'm blinded by the lights

No, I can't sleep until I feel your touch

I said, ooh, I'm drowning in the night

Oh, when I'm like this, you're the one I trust

I'm just walking by to let you know (by to let you know)

I can never say it on the phone (say it on the phone)

Will never let you go this time (ooh)

I said, ooh, I'm blinded by the lights

No, I can't sleep until I feel your touch

(Hey, hey, hey)

I said, ooh, I'm blinded by the lights

No, I can't sleep until I feel your touch

Answer:

Its 25

Step-by-step explanation:

It is 25 as 4x5 is 20 so u have the denominator so u do the same for 5 , 5x5 is 25 so 4/5=20/25

Answer: x^2 -x-6

Step-by-step explanation:

Mat

The product of  (x + 2)(x - 3) is x² - x - 6

"It is a mathematical statement which consists of constants, variables and mathematical operations."

For given question,

We have been given an algebraic expression (x + 2)(x - 3)

We need to find the product of (x + 2)(x - 3).

(x + 2)(x - 3)

= x (x - 3) + 2(x - 3)

= x² - 3x + 2x - 6

= x² - x - 6

Therefore, the product of  (x + 2)(x - 3) is x² - x - 6

Learn more about algebraic expression here:

https://brainly.com/question/19245500

#SPJ2

a.  the probability of getting exactly 3 cards from the heart suit is approximately 0.0585. b.  the probability of getting 4 or fewer cards from the heart suit is approximately 0.7681. c. the probability that every card in the hand is from a different suit is approximately 0.395. d. the probability that every card in the hand is red or every card in the hand is black is approximately 0.00198.

(a) To calculate the probability of getting exactly 3 cards from the heart suit, we can use the combination formula:

number of ways to choose 3 hearts out of 13 hearts * number of ways to choose 2 non-hearts out of 39 non-hearts / number of ways to choose 5 cards out of 52 cards

= (13 choose 3) * (39 choose 2) / (52 choose 5)

= 0.0585 (rounded to 4 decimal places)

Therefore, the probability of getting exactly 3 cards from the heart suit is approximately 0.0585.

(b) To calculate the probability of getting 4 or fewer cards from the heart suit, we can use the complement rule:

1 - (number of ways to choose 5 non-hearts out of 39 non-hearts / number of ways to choose 5 cards out of 52 cards)

= 1 - (39 choose 5) / (52 choose 5)

= 0.7681 (rounded to 4 decimal places)

Therefore, the probability of getting 4 or fewer cards from the heart suit is approximately 0.7681.

(c) To calculate the probability that every card in the hand is from a different suit, we can use the multiplication principle:

number of ways to choose 1 card of each suit / number of ways to choose 5 cards out of 52 cards

= (13 choose 1) * (13 choose 1) * (13 choose 1) * (13 choose 1) / (52 choose 5)

= 0.395 (rounded to 3 decimal places)

Therefore, the probability that every card in the hand is from a different suit is approximately 0.395.

(d) To calculate the probability that every card in the hand is red or every card in the hand is black, we can use the addition rule:

probability of all red cards + probability of all black cards

= (26 choose 5) / (52 choose 5) + (26 choose 5) / (52 choose 5)

= 0.00198 (rounded to 5 decimal places)

Therefore, the probability that every card in the hand is red or every card in the hand is black is approximately 0.00198.

To learn more about probability refer to:

brainly.com/question/11234923

#SPJ4

Answer:

37

Step-by-step explanation:

Before we find quartile, we have to arrange the data set in order first from least to greatest which this problem has already arranged the data for us.

Next, proceed with the calculation. The formula for finding position of quartile is:

\(\displaystyle{Q_r = \dfrac{r(N+1)}{4}}\)

Where \(\displaystyle{Q_r}\) means the rth quartile, N means number of data set. Since we want to find the third quartile, substitute r = 3 and there are 11 data so substitute N = 11:

\(\displaystyle{Q_3 = \dfrac{3(11+1)}{4}}\\\\\displaystyle{Q_3 = \dfrac{3(12)}{4}}\\\\\displaystyle{Q_3 = 3\cdot 3}\\\\\displaystyle{Q_3 = 9}\)

So the position of third quartile is at 9th position which is 37.

Henceforth, the third quartile is 37.

Answer:

37.

Step-by-step explanation:

The data is in ascending order, which is what we need to get the answer.

As there are 11 numbers the 9th number is the upper(third)  quartile.

The median ( middle) number is 29 and the upper quartile is the middle number of the 5 numbers to the right of the median.

It is 37.

The graph of saving function f(x) = 40 - 1.25x has been plotted with a slope of -1.25.

A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.

In order to plot the graph, we need to find out y's values corresponding to x's value

Given the function,

f(x) = 40 - 1.25x

Now to plot it we need to put x = 0

f(0) = 40 so y-intercept is (0,40)

Now keep f(x) = 0

Then 0 = 40 - 1.25x

x = 40/1.25 = 32

So x-intercept is (32,0)

So plot a straight line using points (0,40) and (32,0).

Hence "The graph of saving function f(x) = 40 - 1.25x has been plotted".

For more information about the graph of a function

brainly.com/question/27757761

#SPJ1

Answer:

It has higher PE which can be converted into kinetic energy. The car also has had more work done on it when its at a higher position.

Step-by-step explanation:

This is because the cart gains speed as it goes from the top of higher point to bottom.

a) The parametric equations of the line are: x(t) = −2 + 3t, y(t) = 4 − 2t, z(t) = 3 + 4t and The symmetric equation of the line are: (x + 2)/3 = (y − 4)/−2 = (z − 3)/4

b) The line intersects yz-plane at (0, 8/3, 17/3)

The given points on the line are:

(x₁, y₁, z₁) = (−2, 4, 3)

(x₂, y₂, z₂) = (1, 2, 7)

The direction ratios of this line are:

⟨a, b, c⟩ = ⟨x₂ − x₁, y₂ − y₁, z₂ − z₁⟩

             = ⟨1 + 2, 2 − 4, 7 − 3⟩

             = ⟨3, −2, 4⟩

a) Parametric equations of the line:

These are given by:

x(t) = x₁ + at = −2 + 3t

y(t) = y₁ + bt = 4 − 2t

z(t) = z₁ + ct = 3 + 4t

Symmetric equation of the line:

This is given by:

              (x − x₁)/a = (y − y₁)/b = (z − z₁)/c

              (x + 2)/3 = (y − 4)/−2 = (z − 3)/4

b) When a line intersects the yz-plane, its x-coordinate is zero.

Using the parametric equations of the part (a):

                                   x = 0

                          −2 + 3t = 0

                                  3t = 2

                                    t = 2/3

Substitute this in the parametric equations corresponding to y and z as well:

                                   y = 4 −2t

                                      = 4 − 2(2/3)

                                      = 8/3

                                   z = 3 + 4t

                                      = 3 + 4(2/3)

                                      = 17/3

Hence, the required point is: (x, y, z) = (0, 8/3, 17/3)

To learn more about parametric equations here:

brainly.com/question/28537985

#SPJ4

Answer:

2.3333333 miles in 3.5 minutes = 2.3333333 / 3.5 =

2/3 miles per minute or

.66666666 miles per minute

In 34 minutes, it can travel 34 * (2/3) = (68/3) =

22 (2/3) miles

Step-by-step explanation:

s1 = 5

s2 = s1 × -2 = 5×-2 = -10

s3 = s2 × -2 = -10 × -2 = 20

...

now, we could do all that manually.

but there is also a formula for geometric sequence.

in fact, there are 2 - one for finite and one for infinite sequences.

and I was not completely honest, each of these 2 had some sub-forms depending on the size of the multiplier or ratio.

since we need the sum of the first 5 terms, which of the 2 do you think we need ?

of course, finite, because 5 is a normal number we can "touch". it is not infinity.

so, the formulas for finite sums of geometric sequences are :

if |r| < 1, Sn = a(1 - r^n)/(1 - r)

if |r| > 1, Sn = a(r^n - 1)/(r - 1)

if r = 1, Sn = na

if r = -1, then Sn = a or 0 depending on if n is odd or even.

the sequence is in general

s1 = a

sn = sn-1 × r

in our case a = 5, r = -2.

so, what form of the formula do we need ?

|-2| = 2, and 2 > 1, so ...

S5 = 5(-2^5 ‐ 1)/(-2 - 1) = 5(-32 - 1)/-3 = 5×-33/-3 =

= 5 × 11 = 55

quick check, as the 5 terms are

5

-10

20

-40

80

and their sum is : 55

correct !

1.) Probability of getting 1: 0.12 or 12%.

2.) Probability of getting 2: 0.16 or 16%.

3.) Probability of getting 3: 0.25 or 25%.

4.) Probability of getting 4: 0.18 or 18%.

5.) Probability of getting 5: 0.15 or 15%.

6.) Probability of getting 6: 0.14 or 14%.

To calculate the probability of getting a specific number on a fair die, we divide the number of times that number appears by the total number of rolls. In this case, the die was rolled 100 times, and the results are given as follows:

Number: 1 2 3 4 5 6

Times: 12 16 25 18 15 14

To find the probability of getting each number, we divide the corresponding number of times by the total number of rolls (100):

Probability of getting 1 = 12 / 100 = 0.12.

Probability of getting 2 = 16 / 100 = 0.16.

Probability of getting 3 = 25 / 100 = 0.25.

Probability of getting 4 = 18 / 100 = 0.18.

Probability of getting 5 = 15 / 100 = 0.15.

Probability of getting 6 = 14 / 100 = 0.14.

Therefore, the probabilities of getting each number on a fair die, based on the given results of 100 rolls, are approximately:

1: 0.12 or 12%,

2: 0.16 or 16%,

3: 0.25 or 25%,

4: 0.18 or 18%,

5: 0.15 or 15%,

6: 0.14 or 14%.

For more question on  Probability visit:

https://brainly.com/question/25839839

#SPJ8

Answer:

Monika gets £90

Step-by-step explanation:

Let us use the ratio method to solve this question

∵ Monika and Robert are Two factory workers

∵ They win the in-house raffle with a prize of £240

∵ Monika and Robert share the prize money in a ratio of 3: 5

→ That means the total of the ratio is equivalent to the value of the prize

∵ The total of the ratio = 3 + 5 = 8

→ By using the ratio method

→  Monika  :  Robert  : Total

→   3           :   5           :   8

→   x           :   y            :   240

→ By using the cross multiplication

∵ x × 8 = 3 × 240

∴ 8x = 720

→ Divide both sides by 8

∵ \(\frac{8x}{8}\) = \(\frac{720}{8}\)

∴ x = 90

∵ x represents the share of Monika

∴ Monika gets £90

Answer:

3 oil changes

Step-by-step explanation:

1. Find an equation that represents this word problem: 3000x + 5000 = y

Where y = the # of miles total. y = 250 miles/week * 52 weeks/year = 13000 miles.

2. Solve for x: 3000x + 5000 = 13000   3000x=8000

3. x = 8/3 integer round down x = 2 oil changes, but plus the one after 5000 miles is a total of 3 oil changes that year

Answer:

Expanded Notation Form:

6.34

=

6

+

0.3

+

0.04

Expanded Factors Form:

6.34

=

6 ×

1

+

3 ×

0.1

+

4 ×

0.01

Expanded Exponential Form:

6.34 =

6 × 100

+

3 × 10-1

+

4 × 10-2

The perimeter of the rectangle is 62 square units.

The perimeter of a rectangle can be calculated using the formula:

P = 2(L + W)

Where:

L is the length of the rectangle

W is the width of the rectangle

We have:

L = 20 units

W = 11 units

Substituting into the formula:

P = 2(20 + 11)

P = 2(31)

P = 62 square units

Learn more about perimeter of rectangle on:

https://brainly.com/question/19819849

#SPJ1

Question in English

What is the perimeter of a rectangle if it is 20 long and 11 wide?

Answer:

C 6.74

Step-by-step explanation:

thats the answer

Answer:

C 6.74

Step-by-step explanation:

I caculated it.

The estimated sum of 7 83/84 is 8 to the nearest whole number.

Mixed fractions are fraction that has a whole number attached to an improper fraction. A mixed fraction can be added by first adding the real whole numbers together, then adding their improper fraction counterparts with it.

Also, we can add two mixed fractions together by first converting all the mixed fractions to improper fractions before adding them together.

Using the first process:

= 4 5/12 + 3 8/14

The whole number are 4 and 3, adding those two together, we have:

= 7 (5/12 + 8/14)

The L.C.M of 12 and 14 is 84.

= 7( (7×5)+ (6*8) )  /84

= 7 (35+ 48/84)

= 7 (83/84)

To decimal, we get 7.988. Therefore, the estimated sum of 7 83/84 is 8 to the nearest whole number.

Learn more about adding mixed fractions here:

https://brainly.com/question/21610929

#SPJ1

Answer: a. 47 plusminus (1.753*(5 ÷ 3.8730)

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation = 5

n = number of samples = 15

z represents the test statistic

From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the test statistic score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 15 - 1 = 14

Since confidence level = 90% = 0.90, α = 1 - CL = 1 – 0.90 = 0.1

α/2 = 0.1/2 = 0.05

the area to the right of z0.05 is 0.05 and the area to the left of z0.05 is 1 - 0.05 = 0.95

Looking at the t distribution table,

z = 1.753

Margin of error = 1.753(5 ÷ 3.8730)

Confidence interval = 47 ± 1.753(5 ÷ 3.8730)

Out of the 400 surveyed students, 327 were either seniors or commuters.

To find the number of students who were either seniors or commuters out of the 400 surveyed students, we need to add the number of seniors and the number of commuters while avoiding double-counting those who fall into both categories.

According to the information given:

There were 262 seniors.

There were 215 commuters.

150 of the seniors were also commuters.

To avoid double-counting, we need to subtract the number of seniors who were also commuters from the total count of seniors and commuters.

Seniors or commuters = Total seniors + Total commuters - Seniors who are also commuters

= 262 + 215 - 150

= 327

Therefore, out of the 400 surveyed students, 327 were either seniors or commuters.

It's important to note that in this calculation, we accounted for the overlap between seniors and commuters (150 students who were both seniors and commuters) to avoid counting them twice.

This ensures an accurate count of the students who fall into either category.

For similar question on surveyed.

https://brainly.com/question/14610641  

#SPJ8

The median and the range for the data-set are given as follows:

The median of a data-set is the middle value of a data-set, the value of which 50% of the measures are less than and 50% of the measures are greater than. Hence, the median also represents the 50th percentile of a data-set.

The ordered data-set is given as follows:

3, 6, 12, 15, 17, 19, 21.

The middle value is of 15, hence it represents the median of the data-set.

The range of a data-set is defined as the difference between the largest and the smallest value in the data-set, hence:

21 - 3 = 18.

More can be learned about the median of a data-set at brainly.com/question/3514929

#SPJ1

Answer:

#1=24   #2=36   #3=77   #4=21

Step-by-step explanation:

Hope this helps

Answer:

1-8×3=24

2-9×4=36

3-11×7=77

4-7×3=21

but don't forget to put units and put square