3 years ago

Simplify using only positive exponents.

Mathematics

1 answer:

boyakko [2]3 years ago

4 0

I think the correct answer might be A or D

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Keisha makes a large sandwich for family picnic. She takes 1/2 of the sandwich to the picnic. At the picnic, her family eats 3/8

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Keisha brings back 1/8th of the sandwich

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After t seconds, a ball in the air from the ground level reaches a height of h feet given by the equation h= 144t-16t^2 . After

Effectus [21]

H=0
Therefore:
144t-16t²=0
t (144-16t)=0
We have two equations:
1)
t=0 (when the ball is released)
2)
144-16t=0
-16t=-144
t=-144 / -16=9 (this is the time )

Answer: the ball hit the ground in 9 s.

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3 years ago

How do I solve 48x-36x=-144

sasho [114]

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3 years ago

Read 2 more answers

If the ratio of boys to girls at the school is 2:5 and there are 40 boys how many girls are there?

sukhopar [10]

Answer:

100 girls

Step-by-step explanation:

The ratio of boys : girls is 2 : 5.

In other words, boys are 2 parts of the school while girls are 5 parts of the school.

Since there are 40 boys, 2 parts of the school is 40. Thus:

$2p = 40\\p = 20$

1 part is 20.

Since there are 5 parts girls, there are

$5p = 5*20 = 100$

100 girls.

Answer: 100 girls

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3 years ago

What is 25% of 7000000

Virty [35]

25% of 700000 is 1750000

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3 years ago