Answer:
x = 41
y = 24
Step-by-step explanation:
Systems of equations is,
-2x - 7y = -250 ------(1)
4x - y = 140 ------(2)
Equation (1) multiplied by 2 then added to equation (2)
-4x -14y = -500
(+) 4x - y = 140
-15y = -360
y = \(\frac{360}{15}\)
y = 24
by putting y = 24 in equation (2),
4x - 24 = 140
4x = 140 + 24
x = \(\frac{164}{4}\)
x = 41
For x = 41 and y = 24 both the equations are true.
Equation (1), -2(41) - 7(24) = -250 [True]
Equation (2), 4(41) - (24) = 140 [True]
Answer:it’s 41 and 24
Step-by-step explanation:
(REPLY FOR EXTRA POINTS) School hack:
If you have a question something like this: "Determine which integer makes the inequality 6(n − 5) < 3(n + 4) true."
The answer would most likely be the last answer choice.
This is because when teachers create the question they put it as the last one to make you work out all of the firsts ones first so you can do more work which means more practice.
I'm not 100% sure, but I had a question like this and the answer was the last one.
Hope this school hack helps!! :)
Answer:
Or you could just solve for n and pick the choice that matches what you got :)
Step-by-step explanation:
PLS HELP ASAP! WILL GIVE BRAINLIEST!!! Jason rode his bike in a sprint trial for 15 minutes and complicated a distance of 9 3/4 miles. In his second sprint trial he rode for 20 minutes and completed a distance of 12 2/3 miles.
What is the difference in his speed in miles per hour between the two sprint trials?
(A) The first trial was 3 miles per hour slower.
(B) The first trial was 3 miles per hour slower.
(C) The second trial was 1 mile per hour faster.
(D) The second trail was 1 mile per hour slower.
A square coaster has a side length of 5/12 feet on each side.
What is the area of the coaster?
Enter your answer as a fraction in simplest form by filling in the boxes.
Answer:
25/144
Hope this helps
Answer:
25/144
Step-by-step explanation:
Someone help me with this ASAP!
Answer:
48.1 somewhere around 36 and 57
Step-by-step explanation:
Answer:
36-57
Step-by-step explanation:
18.50 x 2.6 = 48.10, which is between those two numbers
TOpic 8 math help please
I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.
Answer:
it's Zac Efron for sure, Leonardo DiCaprio is just not the same...
please help noww
The table shows a proportional relationship.
Workout (hours) 1 2 3
Calories Burned 190 380 570
Create a description in words for the table.
The number of calories burned is dependent on the number of hours working out. For every 190-hour workout, there is 1 calorie burned, and for every 380-hour workout, there are 2 calories burned.
The number of calories burned is dependent on the number of hours working out. For a one-hour workout, there are 190 calories burned, and for a two-hour workout, there are 380 calories burned.
The number of hours working out is dependent on the number of calories burned. For every 190-hour workout, there is 1 calorie burned, and for every 380-hour workout, there are 2 calories burned.
The number of hours working out is dependent on the number of calories burned. For a one-hour workout, there are 190 calories burned, and for a two-hour workout, there are 380 calories burned.
Answer:
The number of calories burned is dependent on the number of hours working out. For a one-hour workout, there are 240 calories burned, and for a two-hour workout, there are 480 calories burned.
Step-by-step explanation:
:-)
How do you solve -n = 40?
Answer:
n = -40
Step-by-step explanation:
Simply divide both sides by -1.
-n = 40
-n / -1 = 40 / -1
n = -40
Answer:
n = -40
Step-by-step explanation:
Simply divide both sides by -1.
-n = 40
-n / -1 = 40 / -1
n = -40
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
A fruit juice recipe calls for 2 parts orange juice and 8 parts pineapple juice. Which proportion can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice?
2 over 8 equals j over 18
8 over 2 equals j over 18
8 over j equals 2 over 18
16 over 18 equals j over 100
The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:
2/8 = j/18
This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:
2/8 = j/18
218 = 8j
36 = 8*j
j = 36/8
j = 4.5
Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.
Answer:
2 over 8 equals j over 18Step-by-step explanation
2 over 8 equals j over 18
This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.
So, the correct proportion is:
2 over 8 equals j over 18
Earn points, answer both questions!
Answer:
Area of five squares = 1289.09 square units
Perimeter = 194.6 units
Step-by-step explanation:
Area of square and perimeter:
First find the length of each square, then find the area of each square.
To find the area of five squares, add all the area of each square.
Side of square1 = 27 units
\(\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units\)
Area of square1 = 27*27 = 729 square units
Area of square2 = 18*18 = 324 square units
Area of square3 = 12*12 = 144 square units
Area of square4 = 8*8 = 64 square units
Area of square5 = 5.3*5.3 = 28.09 square units
Area of five squares = 729 + 324 + 144 + 64 +28.09
= 1289.09 square units
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)
= 90 + 42 + 28 + 18.7 + 15.9
= 194.6 units
What is the value of x in the equation −x = 4 − 3x + 6? (5 points)
Group of answer choices
5
10
−5
−10
Answer:
x=5.
Step-by-step explanation:
Are the fractions 7/9 and 4/9 like fractions?
Answer:
Yes
Step-by-step explanation:
Answer:
no they are not alike if that does not answer your question than they are fractions
Step-by-step explanation:
Complete the table below. Rewrite each power in expanded form using repeated multiplication, and then evaluate the expression to find the equivalent value.
i need help on this plss
Answer:
2=3×3×3×3
3=6×6
4=2×2×2×2×2×2
Someone help me with this
Answer:
7:5, 8:19, 6:23, A and D, 2.5
Step-by-step explanation:
help help help help help
Answer:
This is what I got, the second one, the third one, and the fifth one.
Step-by-step explanation:
Please help i’ll give brainliest!
For which set of data are the median and mode the same number?
A. 4, 5, 7, 7, 8, 10
B. 3, 5, 6, 8, 8, 9
C. 5, 5, 6, 8, 9, 10
D. 4, 5, 7, 8, 9, 9
Answer: A
Step-by-step explanation:
median: 7+7=14
14/2=7✅
mode: 7 shows up the most (twice)
match the two step inequality to the correct graph.
Answer:
Hello,
I think -2p < - 10 goes with graph one
Then -M = 8 > 6 goes to Graph Two
Next 13 > 4r + 5 goes to Graph three
Last but not least -7 - Z < -1 goes to Graph Four
If I am Wrong i am sorry
Step-by-step explanation:
Can you solve this for me? Thanks! :>
Answer:
Fraces 40.2
Step-by-step explanation:
The person between 39.6 and 42.4 cannot make the team.
So, as 40.2 is coming in between 39.6 and 42.4, Frances cannot make the team.
Hope this helps. Pls mark it as the BRAINLIEST!
PLEASE HELP!!!!!!!!!!!!!!
HELLPPP meeeeeee e PLEASEEEEE E
Answer:
306.75
Step-by-step explanation:
Just subtract 372 from 65 1/4
Answer:
306.75
Step-by-step explanation:
pls pls pls help i rlly need the asnwer soon
Answer:
(1. 5
(2. 180
(3. 900
(4. 5180=900
Step-by-step explanation:
Identify which of the following sets of numbers the number belongs to: rational numbers, integers, whole numbers. SOMEONE PLZ HELP -3 A. Rational Number B. Whole Number C. Integer
Answer:
c
Step-by-step explanation:
trust me bro
Answer:
its a and c
Step-by-step explanation:
five more than the product of two and a number, decreased by seven;
evaluate when a = 8
A 2-column table with 7 rows. Column 1 is labeled Key Words with entries five, more than, product, two, a number, decreased by, seven. Column 2 is labeled Replace with entries 5, +, times, 2, a, minus, 7.
Write and evaluate the expression. Then, complete the statements.
First, write the expression
.
Second,
8 in for the variable, a.
Third,
by using
✔ order of operations
.
The answer is
.
Answer:
First, write the expression
✔ 5 + 2a – 7
.
Second,
✔ substitute
8 in for the variable, a.
Third,
✔ simplify
by using
✔ order of operations
The answer is
✔ 14
-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)
Answer:
Option #4
Step-by-step explanation:
Expand option #4
=-3(1-2x)
=-3 -2x*-3
=-3+6x which is what your original equation was.
Julie is painting a mural on a rectangular wall in her school. The wall is 20.5
feet long and 10
feet wide. So far, her mural covers 20%
of the wall. She will paint the remaining part of the wall over the next four days. She will paint the same amount of the wall on each of those four days.
How much of the wall, in square feet, will Julie paint on each of the next four days?
Enter your answer in the space provided.
the wall she's using for the mural is (20.5)(10) = 205 ft², so far she has done 20% of that, well, she still has 100% - 20% = 80% to go on the next four days, so on the next four days she'll be doing 80% of 205 ft².
\(\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{80\% of 205}}{\left( \cfrac{80}{100} \right)205}\implies 164~ft^2\)
please answer this algebra question i will give brainly and thanks :)
Answer: 5.3
Step-by-step explanation:
(2.5)^2-19(2.5)/50
6.25-47.5/50
5.3
Please help me answer.
Answer: First blank is 15 then 28 then 25 in the last blank.
Step-by-step explanation:
On the left side column it is going up by 5 and the right column is going up by 7.
...... sry abt the other one but HELP!
Answer:
Uh hehe u forgot to add an image?...
i need help with this question please help me
Answer:
The answer is D.
Step-by-step explanation:
y = mx + b
C = 5/9 (F - 32)
C = 5/9F - 5/9 (32)
Option (D) is correct.