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3 years ago

9

A car uses 8 gallons of gasoline to travel 290 miles. How much gasoline will the car use to travel 400 miles

1 answer:

VARVARA [1.3K]3 years ago

7 0

To find this answer, you would need to find how many miles 1 gallon of gas will take them. To find this, you would do 290÷8=36.25. So with this information, you will be able to find out how much gas it would take to travel 400 miles. You would do 400÷36.25=11.03. 11.03 would be how many gallons of gas is used to travel 400 miles. Hope this helps! ;)

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Inverse of y equals 12 to the x

e-lub [12.9K]

Answer:

$f^{-1}(x) = log_{12}(y)$

Step-by-step explanation:

We have the following function

y = 12^x, and we need to find the inverse function.

To find the inverse function we should solve the equation for "x". To do so, first, we need to:

1. Take the logarithm in both sides of the equation:

lg_12 (y) = log _12 (12^x)

(Please read lg_12 as: "Logarithm with base 12")

From property of logarithm, we know that lg (a^b) = b*log(a)

Then:

lg_12 (y) = x*log _12 (12)

We also know that log _12 (12) = 1

Then:

x = log_12(y).

Then, the inverse of: y= 12^x is:

$f^{-1}(x) = log_{12}(y)$

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3 years ago

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Ghella [55]

Answer:

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Step-by-step explanation:

3 and 5 both go into 15, 4/5 = 12/15 and 2/3=10/15

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3 years ago

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mrs_skeptik [129]

The answer is B.

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Step-by-step explanation:

Given the equation:

$y+2x=3$

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3 years ago

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Talja [164]

Answer:

t=10

Step-by-step explanation:

3t + 15 = 45

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2 years ago

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