2 years ago

Write an equivalent expression for 7(2x - 3y + 6) by modeling and by using the distributive property.

Mathematics

1 answer:

alexandr402 [8]2 years ago

3 0

14x-21y+42 is the answer to this question.

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2 years ago

Suppose that 13 inches of wire costs 52 cents. At the same rate, how many inches of wire can be bought for 32 cents?

kirill115 [55]

Answer:

So we have a ratio which you have specified 13:52. So we just need to get the same ratio for 13. 32/52 is how we get 32 from multiplying by 52. So now we just need to multiply it for 13 also'

13*32/52 = 8. Therefore the answer to this is 8

<h2 /><h2><u>8 is answer</u></h2>

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2 years ago

Ax+16=b−3x what is a= and what does b= ?

Vlad1618 [11]

Answer:

Slope=4

x−intercept=−

=−4

b−intercept=

=16.0000

Step-by-step explanation:

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3 years ago

Suppose a population has a mean of 400 and a standard deviation of 24. if a random sample of size 144 is drawn from the populati

Drupady [299]

Find the critical value or test statistic.
$z = \frac{m - \mu}{\sigma/\sqrt{n}} = \frac{404.5 - 400}{24/\sqrt{144}} = \frac{4.5}{2} = 2.25$

Find P(z > 2.25) using a normal distribution table

P(z > 2.25) = 0.0122

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2 years ago

Part B The mass of an average grain of rock salt is about 40 times the mass of an average grain of table salt. If you multiply t

yawa3891 [41]

Answer:

0.012

Step-by-step explanation:

We know the standard notation of table salt is 0.003, so we simply multiply 40 by this.

answer - 0.0003 X 40 = 0.012

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1 year ago