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3 years ago

Tara paid $3.52 for 4 boxes of macaroni and cheese. Jarrett paid $5.40 for 6 boxes of macaroni and cheese. Which of

Mathematics

1 answer:

Musya8 [376]3 years ago

5 0

Answer: Tara paid more per box

Step-by-step explanation:

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-(12x-6)=12x 6 solve for x

postnew [5]

6=24x
hope this helped :)
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5 0

3 years ago

What is 30% of 70. show your work

mamaluj [8]

Answer: 21

Step-by-step explanation:

we have two simple equations:

1) 70=100%

2) x=30%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

70/x=100%/30%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 30% of 70

70/x=100/30

(70/x)*x=(100/30)*x - we multiply both sides of the equation by

70=3.33333333333*x - we divide both sides of the equation by (3.33333333333) to get x

70/3.33333333333=x

The fore, the answer is 21

8 0

4 years ago

Read 2 more answers

The senior classes at High School A and High School B planned separate trips to Lake Compounce. The senior class at High School

storchak [24]

Answer:

Number of students in vans =15 and bus =46

Step-by-step explanation:

use variables for the vans and buses

let x= vans and y=buses

Now solve the 2 equations simultaneously

remember to number your equations

6x+7y=412..........1

6x+9y=504.........2

make x the subject of one equation

and label it equation 3

6x=412—7y

$x = \frac{206}{3} - \frac{7y}{6} .............3$

subs 3 into 2

$6( \frac{206}{3} - \frac{7y}{6} ) + 9y = 504$

$412 - 7y + 9y = 504$

$- 7y + 9y = 504 - 412$

$2y = 92$

$y = 46...................4$

subs 4 into 1

$6x + 7(46) = 412$

$6x + 322 = 412$

$6x = 412 - 322$

$6x = 90$

$x = 15$

Therefore there are 15 students in each van and 46 students in each bus.

3 0

3 years ago

You deposit $800 in an account that earns simple interest at an annual rate of 5%.

S_A_V [24]

Step-by-step explanation:

$800 × 5% = $40

for 1 year, I earn $40

100 ÷ 40 = 2 remainder 2

Therefore I would have to leave the money in for at least 3 years to earn $100

7 0

4 years ago

Read 2 more answers

Complete the pattern

romanna [79]

1.) 376.2
2.) 37620
3.)376200.
3.) 3762000

hope that helped

7 0

4 years ago