2 years ago

Please help me with this homework

Mathematics

1 answer:

Oliga [24]2 years ago

7 0

Answer:

2-0

_____

-8-(-1)

explanation:

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2 years ago

Question 1 . What division problem does this area model represent?

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2 years ago

At a school, there are 120 athletes. The ratio of boy athletes to girl athletes is 3:5. How many of the athletes are girls?

FinnZ [79.3K]

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2 years ago

4s - (s - 12) = 1- (1 - 6s)?

Nadusha1986 [10]

Answer:

s=-4

Step-by-step explanation:

combine like terms on each side and get 3s-12=6s
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3 years ago

A. 12 + 4x = 6x + 10 – 2x

GalinKa [24]

An equation has infinitely many solutions if it can be manipulated all the way to an identity (i.e. an equality where the right and left hand side are the same). We have:

A) $12+4x=6x+10-2x \iff 12+4x=10+4x \iff 12=10$

which is impossible

B) $5x+14-4x=23+x-9 \iff x+14 = x+14$

which is an equality

C) $x+9-0.8x=5.2x+17-8\iff 0.2x+9=5.2x+9 \iff 0.2x=5.2x\iff x=0$

which has a unique solution

D) $4x-2x=20 \iff 2x=20 \iff x=10$

which has a unique solution

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3 years ago