Add all the sides up to equal 30 in an equation because you are given the perimeter. The perimeter is the length around a two dimensional shape. This means the perimeter is the length of all the side lengths added together.

(x) + (2x + 2) + (13) = 30

Combine like terms.

3x + 15 = 30

Subtract 15 from both sides.

3x = 15

Divide both sides by 3.

$\boxed {x = 5}$

3 0

3 years ago

Three boxes of cereal weigh 379.4 grams,424.25 grams,and 379.37 grams. What is the difference between the lightest and the heavi

TiliK225 [7]

Answer:

44.88

Step-by-step explanation:

Heaviest box = 424.25

Lightest box = 379.37

424.25 - 379.37 = 44.88

Hope this helps!

8 0

3 years ago

Write the phrase as an expression. The quotient of 40 and the difference of a number y and 16.

klio [65]

Answer:

40/y-16

Step-by-step explanation:

5 0

3 years ago

Jerome got in the elevator on the first floor of his office building. He went up 18 floors to his office. Then, Jerome took the

steposvetlana [31]

He starts on the 1st floor. He then goes up 18 floors:

1 + 18 = 19

He took the stairwell down 3 floors

19 - 3 = 16

He then takes the elevator down 8 floors

16 - 8 = 8

He then takes the stairwell up 5 floors for his afternoon meeting

8 + 5 = 13

C. thirteenth is your answer

hope this helps

7 0

3 years ago

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