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3 years ago

Quick Math, 75% of 180?

Mathematics

1 answer:

sdas [7]3 years ago

5 0

75% = 3/4
3/4 of 180 = 135

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Find the mean: 28, 18, 19, 18, 17 Heh help

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Answer:

Mean = 20

Step-by-step explanation:

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Write (7 + 3) + (6 - ) as a complex number in standard form.

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Step-by-step explanation:

(7 + 3) + (6 -)

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2 years ago

Corey has a garden in the shape of a square. The garden covers 64 square feet. What are the possible dimensions?

Valentin [98]

Answer:

64 = 1 x 64, 2 x 32, 4 x 16, or 8 x 8.

Step-by-step explanation:

If a garden covers 64 square feet total, then you simply find the common factors of 64.

64: 1, 2, 4, 8, 16, 32, 64.

So, the possible dimensions are,

64 = 1 x 64, 2 x 32, 4 x 16, or 8 x 8

Square feet total is 64. So put 4x16 or 8x8 or 2x32. Because if you multiply lets say 4x16, that would equal 64 square feet total.

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3 years ago

A rectangular garden is 6 feet long and 4 feet wide. A second rectangular garden has dimensions that are double the dimensions o

yKpoI14uk [10]

Answer:

100%

Step-by-step explanation:

When the dimensions double, the perimeter doubles.

The percent change can be found from ...

percent change = ((new value)/(old value) -1) × 100%

Filling in your values, you have ...

percent change = ((2×(old perimeter))/(old perimeter) -1) × 100%

= (2 - 1) × 100%

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The perimeter increases by 100% from the first garden to the second.

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3 years ago

A cylinder has a height of 4 inches greater than the radius of its base. Find the radius and the height to the nearest inch if t

anastassius [24]

Answer:

$h=5in, r=1in$

Step-by-step explanation:

The volume of a cylinder is:

$V=\pi*r^2*h$

where $r$ is the radius and $h$ is the height.

The height is 4 inches greater that the radius, so:

$h=r+4in$

Substituting this in the formula for volume:

$V=\pi*r^2*(r+4)$

the volume is $V=5\pi in^3$

thus:

$5\pi in^3=\pi*r^2*(r+4in)$

Dividing everything between pi:

$5in^3=r^2*(r+4in)$

$5in^3=r^3*+4r^2$

We can see that the solution for this is $r=1in$

since $(1)^3*+4(1)^2=1+4=5$

We have the radius, now we find the height:

$h=r+4in=1in + 4in = 5in$

$h=5in, r=1in$

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3 years ago

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