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2 years ago

If y = 18, when x = 12, find y when x = 36.

Mathematics

1 answer:

love history [14]2 years ago

4 0

Answer:

x = 36, y = 54.

Step-by-step explanation:

So if x = 36 and y = ?,

Its the same as x = 12, and y = 18.

36 / 12 = 3

That means y / 18 = 3.

Lets reverse this and make it a multiplication problem.

18 x 3 = y.

18 x 3 = 54.

So if x = 36, y = 54.

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Find the volume of the following cylinder. (Use pi=3.14) V=\ cm.

Nana76 [90]

V = π r² h

= 3.14 × 8 × 8 × 15

= 3014.4 cm³

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2 years ago

Use lengths |OQ| = 9.4 units and |OQ’| = 17.1 units to determine the scale factor r of dilation D (round to the nearest hundredt

NNADVOKAT [17]

Answer:

Scale factor = 1.82 units.

Step-by-step explanation:

We have been given that side length OQ of our prei-mage is 9.4 units and side length OQ' after dilation is 17.1 units. Since our pre-image (original image) is smaller than our new image, so our scale factor (r) will be greater than 1.

Since we know that in a dilation, the sides of the pre-image and the corresponding sides of the image are proportional, so we will use proportion to find a scale factor our given side lengths as:

$\frac{OQ'}{OQ}=\frac{17.1}{9.4}$

$\frac{OQ'}{OQ}=1.8191$

Upon multiplying both sides of our equation by OQ we will get,

$\frac{OQ'}{OQ}\times OQ=1.8191\times OQ$

$OQ'=1.8191\times OQ$

Upon rounding our answer to nearest hundredths place we will get,

$OQ'\approx 1.82\times OQ$

Since side length OQ' is 1.82 times side length OQ, therefore, our scale factor (r) will be 1.82 units.

8 0

2 years ago

You have twenty blankets that each take up 704 cubic inches of space. How many blankets could you pack into a 22-inch moving box

Vsevolod [243]

Answer:

Step-by-step explanation:

i don't know if its right but i did 704 divided by 22 which equals to 22

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2 years ago

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Mark buys $65 worth of of building supplies. He uses a 25% off coupon. What will be the new price?

ss7ja [257]

Answer:

Step-by-step explanation:

65(1-25/100)

65(75/100)

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2 years ago

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the area of an rectangle is 72cm^2. the length of the rectangle is 6cm longer than the width. What is the width of the rectangle

KIM [24]

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Length = Width+6

Area = W * L

Area = W * (W+6)

Multiply it out

Area = W^2 + 6W

Area=72

72 = W^2 + 6W

subtract 72 from both sides

0 = W^2 + 6W - 72

12 * 6 = 72

12 - 6 = 6

Factor it

0 = (W-6)(W+12)

W = 6 and W = -12

Width must be 6 cm because Width can't be negative

L = W+6

L = 6 + 6

L = 12 cm

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3 years ago

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