MATHEMATICS MIDDLE SCHOOL

Solve -7/3x - 3 = -52

Answers

Answer 1
Answer: x= 21

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Answer 2
Answer:

Answer: x=21

Step-by-step explanation:

add 3 to both sides    -7/3x-3+3 = -52+3

simplify      -7/3x = -49

multiply both sides by 3            3(-7/3x) =3 (-49)

simplify            -7x=  -147

divide both sides by -7       -7x/-7 = -147/-7

then simplify         x=21

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a picture has dimensions of 5cm by 10 cm. if you want to enlarge the picture to a size of 31 1/2 cm by 65 by what fraction would you multiply the dimensions?

Answers

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Solve 2x2 + 12x − 14 = 0 by completing the square.

Answers

add 14 both sides
2x^2+12x=14
make term in front of x^2 1

divide both sid s by 2
x^2+6x=7
take 1/2 of 6 and square it and add to both sides (6/2=3 3^2=9)
x^2+6x+9=7+9
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sqrt both sides
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Factor
49x2 + 28 xy + 4y2

Answers

If those 2s are exponents then here’s ya answer (7x+2y)^2

Aubrey played on the playground 2 1/2 hours.How many minutes did she play?

Answers

1/2 is half. What's half of an hour? 30 minutes. 2 hours is 120 minutes. Just add those! 120 + 30 = 150. Final answer is 150 minutes. Hope this helped!
I believe Aubrey played for 150 minutes

How would you write a penny in a decimal

Answers

You would write a penny in decimal from as 0.1
If you think about it, a penny is always “0.1” when added to an amount. (3 pennies= 0.3) For example, $5.01, you would read this as five dollars and one cent. Another example could be $3.05, which would be read as three dollars and five cents. I hope this helped :)

.01     is how you would write a peny in a decimal

Marcus is filling a pool with water. The pool had 18 gallons of water and 25 minutes later had 428 gallons of water.What does the quotient 16.4 mean

A. The pool is being filled at a rate of 16.4 gallons per minute

B. The pool is being drained at a rate of 16.4 gallons per minute

C. The pool is being filled at a rate of 428 gallons per minute

D. The pool is being drained at a rate of 428 gallons per minute

Answers

Answer:

A. The pool is being filled at a rate of 16.4 gallons per minute.

Step-by-step explanation:

Answer:a

Step-by-step explanation:
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