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Verdich [7]
3 years ago
7

Solve using substitution. y = -2 -7x - y = -5

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
5 0

Step-by-step explanation:

- 7x - ( - 2) =  - 5 \\  - 7x + 2 =  - 5 \\  - 7x =  - 7 \\ x = 1 \\

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Alex777 [14]
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4 0
3 years ago
The length of Marshall's poster is 2 times its width. If the perimeter is 72 inches, what is the area of the poster?
attashe74 [19]
Let's say that the sides of the poster are a and b. We know that the perimeter is 2a + 2b. We know that one side is 2 times width of the other side. So we can write it all as:

72 = 2a + 2 * 2a
72 = 2a + 4a
72 = 6a                / ÷ 6 (both sides)
a = 12

So one side is 12, the other one is 2 * 12 = 24 [inches]. It means that the area of the poster is 12 * 24 = 288 [square inches).
3 0
3 years ago
Sam is flying a kite that is 20 m from her along the ground and 15 m above her. How long is the string between Sam and the kite?
slamgirl [31]

Answer:

35

Step-by-step explanation:

20 + 15 = 35

BRAINLIEST PLEASE

4 0
3 years ago
Read 2 more answers
Suppose that it takes 4 hours of labor time to paint a room and 4 hours to sand a floor. if two workers each spend 12 hours pain
Shkiper50 [21]
It would be three floors because 4x3= 12
4 0
3 years ago
Help me please, i need a answer asap
makkiz [27]

Answer:

14/24 can be a answer?

Step-by-step explanation:

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7 0
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