3 years ago

Please help me! thank you so much

Mathematics

1 answer:

Luda [366]3 years ago

7 0

The Correct Answer Is f(x)=2.5x+5

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The cost of a book is $x what is the expression in terms of x for the number of these books which are bought for $40

spayn [35]

Answer:

In x dollars,

number of book that can be bought = 1

So, In 1 dollar,

number of books that can be bought = 1/x

Hence in 40 dollars,

number of books that can be bought = 40/x

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3 years ago

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2−2s=4/3 s+13 how do you do this

soldi70 [24.7K]

Answer: s = -3.3

<u>Step-by-step explanation:</u>

$2-2s=\dfrac{4}{3}s+13\\\\\\\underline{\text{Multiply everything by 3 to clear the denominator:}}\\(3)2-(3)2s=(3)\dfrac{4}{3}s+(3)13\\\\.\qquad 6-6s=4s+39\\\\\\\underline{\text{Add 6s to both sides:}}\\.\qquad 6-6s+6s=4s+6s+39\\\\.\qquad \qquad \qquad 6=10s+39\\\\\\\underline{\text{Subtract 39 from both sides:}}\\.\qquad \qquad 6-39=10s+39-39\\\\.\qquad \quad \quad -33=10s\\\\\\\underline{\text{Divide both sides by 10:}}\\.\qquad \quad \quad \dfrac{-33}{10}=\dfrac{10s}{10}$

-3.3 = s

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3 years ago

PLEASE HELP!!! NO BOTS!!! ASAP!!!

Burka [1]

The answer to this question is 6 1/4. This is because the vertex of this function has a y-coordinate of 6.25, which is 6 1/4 in mixed fraction form.

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3 years ago

Which is NOT true about a direct proportion? (15 points)

Karo-lina-s [1.5K]

The answer is D.
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