3 years ago

Madelyn's car used 6 gallons of gas to drive 126 miles. At what rate does her car use

Mathematics

1 answer:

Reil [10]3 years ago

4 0

Answer:

Step-by-step explanation:

You are given GALLONS and MILES

you want to find MILES / GALLON

so just put those numebrs in

MILES / GALLON = 126 miles / 6 gallons = 21 m/g (or 21 MPG)

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Find f(x) = 12/4x+2 find f(-1)

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X=-1
12/-4=-3
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The correct answer is -1

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2 years ago

Jean works as a secretary for a local business. She is paid $10.50 per hour. She

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Answer:

$472.5

Step-by-step explanation:

10.5x

10.5 × 45= $472.5

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3 years ago

If a publisher of nontechnical books takes great pains to ensure that its books are free of typos, so that the probability of an

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2 years ago

Find the sumofthe geometrical progression of five terms, of which the first term is 7 and the multiplier is 7.Verify that the su

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Answer:

The sum of first five term of GP is 19607.

Step-by-step explanation:

We are given the following in the question:

A geometric progression with 7 as the first term and 7 as the common ration.

$a, ar, ar^2,...\\a = 7\\r = 7$

$7, 7^2, 7^3, 7^4...$

Sum of n terms in a geometric progression:

$S_n = \displaystyle\frac{a(r^n - 1)}{(r-1)}$

For sum of five terms, we put n= 5, a = 7, r = 7

$S_5 = \displaystyle\frac{7(7^5 - 1)}{(7-1)}\\\\S_5 = 19607$

The sum of first five term of GP is 19607.

Verification:

$2801\times 7 = 19607$

Thus, the sum is equal to product of 2801 and 7.

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3 years ago

At a carnival, Ryan bought 16 packs of 7 tickets each. He also found 9 more tickets on the ground. How many tickets did Ryan hav

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Answer:

121 tickets

Step-by-step explanation:

16x7+9=121

I hope this helps

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2 years ago