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wel
2 years ago
8

Margie's car can go 32 miles on a gallon of gas, and gas currently costs 4 per gallon. How many miles can Margie drive on $20 wo

rth of gas? 64, 128, 160, or 320
Mathematics
1 answer:
Soloha48 [4]2 years ago
8 0
What you do is 20 divided by 4, which is 5. So then you times 32 by 5 and that's how you get 160.
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Statements that are true for a cylinder with radius r and height h.
vampirchik [111]

Answer:

Only the second and third statements are correct:

Doubling <em>r</em> quadruples the volume.

Doubling <em>h</em> doubles the volume.

Step-by-step explanation:

The volume of a cylinder is given by:

\displaystyle V=\pi r^2h

We can go through each statement and examine its validity.

Statement 1)

If the radius is doubled, our new radius is now 2<em>r</em>. Hence, our volume is:

\displaystyle V=\pi (2r)^2h=4\pi r^2h

So, compared to the old volume, the new volume is quadrupled the original volume.

Statement 1 is not correct.

Statement 2)

Using the previous reasonsing, Statement 2 is correct.

Statement 3)

If the height is doubled, our new height is now 2<em>h</em>. Hence, our volume is:

V=\pi r^2(2h)=2\pi r^2h

So, compared to the old volume, the new volume has been doubled.

Statement 3 is correct.

Statement 4)

Statement 4 is not correct using the previous reasonsing.

Statement 5)

Doubling the radius results in 2<em>r</em> and doubling the height results in 2<em>h</em>. Hence, the new volume is:

V=\pi (2r)^2(2h)=\pi (4r^2)(2h)=8\pi r^2h

So, compared to the old volume, the new volume is increased by eight-fold.

Statement 5 is not correct.

7 0
3 years ago
What expression is equivalent to 4,325,000,000
solmaris [256]
It’s B
Since 10^-6 means 6 0
7 0
2 years ago
Read 2 more answers
1367324+3469345-75369x3429x0=??
Mnenie [13.5K]

Answer:

it's ans is 4761300

Step-by-step explanation:

by using BODMAS

75369×3429×0

=0

0+1367324+3469345

=4836669

4836669-75369

=4761300

plz mark me as brainliest plz

5 0
2 years ago
Options <br> A)117<br> B)39<br> C)3<br> D)63
hichkok12 [17]

Answer:

B. 39

Step-by-step explanation:

3x=117divided by 3=39

4 0
3 years ago
Write 720,080 in expanded form with exponents
Kamila [148]
7 x 10^5
+ 2 x 10^4
+ 0 x 10^3
+ 0 x 10^2
+ 8 x 10^1
+ 0 x 10^0
5 0
3 years ago
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