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Leokris [45]
3 years ago
6

Twice the sum of two numbers is 72 if one number is 20 then the other number is_______

Mathematics
1 answer:
Andre45 [30]3 years ago
5 0

Answer:

16

Step-by-step explanation:

If you add 16 to 20 then you get 36. twice of 36 is 72

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Express the area of this triangle as monomial.
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Francesca ran five times as many miles as sophia last year. They ran a total of 3,455 miles. How many miles did each girl run la
uysha [10]

Answer:

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For each mile that Sophia ran, Francesca ran 5 miles. Then Sophia ran 1/6 of their total. Sophia ran ...

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7 0
3 years ago
A rectangle has an area of 8 square centimmetres and a perimeter of 12 cm. What are the width and breath?
vlada-n [284]
Let the Length be L and the Width be W

The area is 8 cm²
LW = 8

The perimeter is 12
2(L + W) = 12
L + W = 6

Solve L and W:
LW = 8 --------------- (1)
L + W = 6------------ (2)

Equation (2):
L + W = 6
L = 6 - W -------------- Sub into (1)
(6 - W) W = 8
6W - W² = 8
W² - 6W + 8 =0 
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W = 2 or 4

When W =2, L = 6 - 2 = 4
When W = 4, L = 6 - 4 = 2

Answer: The Width is 2 cm and the Length is 4 cm
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3 years ago
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