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lara31 [8.8K]
3 years ago
14

What makes 3+7+2 = +2

Mathematics
1 answer:
stepan [7]3 years ago
4 0

Answer:

21 because it all postive and equls

Step-by-step explanation:

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The Length of a rectangle is 5 centimeters less than twice its width . The perimeter of the rectangle is 80cm. What are the dime
borishaifa [10]
Perimeter is the sum of all a shapes sides.

with that in mind, we know a rectangle has four sides. with 2 pairs being the same.

The length as told is, 5 centimeters less than two times the width. Two times the width would be 2w and five less than that would be minus five. so the length is 2w - 5

now to find the perimeter we do two times the width + two times the length.

2w + 2(2w -5) = 80.
Distribute: 2w + 4w - 10 = 80
Add ten to both sides and combine the 2w & 4w:
6w = 90
Divide both sides by 6: w = 15.

with this we know the width is 15. to find length plug in 15 to the 2w - 5 equation.

2(15) - 5 = 30 - 5 = 25.

Slap on the units and width = 15 cm, length = 25 cm


7 0
4 years ago
Write and solve a proportion to answer the question.
andrew11 [14]

Answer:

25%=25/100

Step-by-step explanation:

a=7/32

3 0
3 years ago
Darius is considering renting an apartment or buying a house. The apartment he likes is $1,175 per month. The house would have a
Shkiper50 [21]

Answer:

He will spend 282,000$ for rent of the apartment in 20 years.

He will spend 288,000$ on mortgage for the house in 20 years.

Step-by-step explanation:

Apartment:

1,175$ x 12 months= 14,100$

14,100$ x 20 years= 282,000$

House:

1,200$ x 12 months= 14,400$

14,400$ x 20 years = 288,000$

:))

3 0
3 years ago
10 x 2 tens = tens =
Rama09 [41]
10 x 2 = 20 (twenty)
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3 years ago
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Algebra help what’s the answer??
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I think it’s the last one or d
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