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3 years ago

14

The Windows on the first floor of a building are 3 1/2 yards wide. The Windows on the second floor of the building are 1 7/9 yar

ds wide. How much wider are the Windows on the first floor than the second floor

1 answer:

Sav [38]3 years ago

5 0

The answer, is 2 1/9. subtract 1 7/7 from 3 1/2, and you'll get 2 1/2

(hope this helps)

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Write an equivalent expression using the given property.

gayaneshka [121]

3xy -6x

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3 years ago

Polygons EFGH and E'F'G'H' are shown on the following coordinate grid:

vlabodo [156]

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3 years ago

Simplify the expression to a polynomial in standard form. (X+1)(3x^2+9x+2)

OLEGan [10]

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2 years ago

Noah and Lin are marketing paper cones to hold popcorn to hand out at parent math night. They want the cones to hold 9 cubic inc

Vadim26 [7]

Answer: r = 1.69 inches

h = 2.15 inches

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Volume of a cone is directly proportional to radius and height:

$V=\frac{1}{3}\pi r^{2}h$

They want the cones to hold the same volume of 9 cubic inches.

If height is 3:

$9=\frac{1}{3}\pi r^{2}3$

$\pi r^{2}=9$

$r^{2}=2.864$

r = 1.69 inches

When height is 3, radius is 1.69 inches for a cone to have 9 cubic inches of volume.

If radius is 2:

$9=\frac{1}{3}\pi (2)^{2}h$

$h=\frac{9(3)}{4 \pi}$

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If radius is 2 inches, height of the cone is 2.15 inches.

6 0

3 years ago

A yardstick casts a shadow of 24 in. at the same time a telephone pole casts a shadow of 20 ft 8 in. What is the height of the t

BabaBlast [244]

1 yd = 36 in; 20 ft 8 in = 248 in;
We will use a proportion:
36 : 24 = x : 248
24 x = 36 * 248
24 x = 8,928
x = 8,928 : 24 = 372
Answer: C ) 372 in

5 0

3 years ago