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3 years ago

SOMEONE HELP ME PLEASE

Mathematics

1 answer:

N76 [4]3 years ago

4 0

Answer:

you did not provide the numbers to answer any question...

but the formula that you want is probably this one

Combination Formula nCr=n!(n−r)!r!

Step-by-step explanation:

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Kala drove 250 miles using 9 gallons of gas. at this rate how many gallons of gas would she need to drive 275 miles

Rus_ich [418]

Answer:

9.9 gallons

Step-by-step explanation:

To solve this problem, we need to cross multiply. Lets input the values (250, 275, 9) as shown below:

$\frac{9}{250} = \frac{x}{275}$

Next we cross multiply. We multiply 250 and x, and we multiply 9 and 275.

$250(x) = 250x\\$

$275(9) = 2,475$

Now, lets put the values above back into the equation:

$250x = 2,475$

Lets solve this equation. First we divide 2,475 by 250, making x by itself.

$\frac{2,475}{250} =x$

$9.9 = x$

This means that to drive 275 miles, Kala would need to use 9.9 gallons of gas.

8 0

3 years ago

Kaelyn used 2

n200080 [17]

Answer:

107.5

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which ratio is equivalent to 12 to 8?

Serga [27]

I believe it is 3 to 2

6 0

2 years ago

Find the volume of a cone with a base radius of 6 yd and a height of 9 yd

Veronika [31]

$\text {Volume =} \dfrac{1}{3} \pi r^{2} h$

$\text {Volume =} \dfrac{1}{3} \pi (6)^{2} (9)$

$\text {Volume =} 339.29 \ yd^3$

8 0

3 years ago

If DE≅EF, CD = v + 45, and CF = 4v, what is the value of v?

irinina [24]

Answer:

<h2>since DE≅EF</h2>

CD=CF (cpct)

$v + 45 = 4v \\ 4v - v = 45 \\ 3v = 45 \\ v = \frac{45}{3} \\ v = 15$

<h2>hope it helps you<3</h2>

3 0

2 years ago