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3 years ago

10

gas mileage is the number of miles you can drive on a gallon of gasoline a test of a new car results in 390 miles on 20 gallons

of gas how far could you drive on 40 gallons of gas what is the car gas mile age

1 answer:

BartSMP [9]3 years ago

4 0

The answer to this equation is 780.

Step-by-step explanation:

If I understood the question correctly then all you have to do to solve this is add 390+390=780

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If y = -8 when x=-1, find x when y = 16.

const2013 [10]

Step-by-step explanation:

Let's try to use the slope formula to solve this one:

$\frac{rise}{run} \\ = \frac{ - 8}{ - 1} = \frac{16}{x} \\ - 8x = - 1(16) \\ - 8x = - 16 \\ \frac{ - 8x}{ - 8} = \frac{ - 16}{ - 8} \\ x = 2$

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3 years ago

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840 is what percent of 1750

tamaranim1 [39]

Answer:

48%

Step-by-step explanation:

Express 840 as a fraction of 1750 and multiply by 100%, that is

percent = $\frac{840}{1750}$ × 100%

= $\frac{840(100)}{1750}$ = 48%

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4 years ago

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If f(y) = e^(9y) + e^(-9y), find f'(y). Use exact values.

Westkost [7]

Given:

$f(y)=e^{9y}+e^{-9y}$

To find:

The f'(y).

Solution:

Chain rule of differentiation:

$[f(g(x))]'=f'(g(x))g'(x)$

Differentiation of exponential:

$\dfrac{d}{dx}e^x=e^x$

We have,

$f(y)=e^{9y}+e^{-9y}$

Differentiate with respect to y.

$f'(y)=e^{9y}\dfrac{d}{dx}(9y)+e^{-9y}\dfrac{d}{dx}(-9y)$

$f'(y)=e^{9y}\cdot 9(1)+e^{-9y}\cdot (-9)(1)$

$f'(y)=9e^{9y}-9e^{-9y}$

Therefore, the differentiation of the given function is $f'(y)=9e^{9y}-9e^{-9y}$ .

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3 years ago

Given a term of 7 and a common difference of -2 give the arithmetic sequence

KiRa [710]

Answer:

7, 5, 3, 1, ...

Step-by-step explanation:

7, 5, 3, 1, ...

The rule for this arithmetic sequence is -2n + 9

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3 years ago

Jorges printer can print out 48 pages in 0.5 hour. How many pages can he print in one hour?

Norma-Jean [14]

You would need to do 48×2=96 pages an hour .it would be 96 pages an hour because for half an hour it is 48 pages so you need to do times two to make it one full hour.i hope this helps if you dont get how I explain it please tell me or if you already have an answer

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3 years ago

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