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2 years ago

Solve for x. -7/8x=-5 Ox= 4 3/8 Ox=-4 3/8 Ox=5 5/7 Help please

Mathematics

1 answer:

Artemon [7]2 years ago

6 0

Answer: $x=5\frac{5}{7}$

Step-by-step explanation:

$-\frac{7}{8} x=-5$

multiply both sides by $-\frac{8}{7}$

$(-\frac{8}{7})( -\frac{7}{8}) x=-5(-\frac{8}{7} )\\x=\frac{40}{7\\}\\x=5\frac{5}{7}$

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Trash Cans: Elliot's family has a cylinder shaped trash can. It takes the family a few days to fill the trash can up. Elliot wan

Elza [17]

The volume of cylinder shaped trash can is 4698 cubic inches, if the trash can has a height of 24.90 inches and a diameter of 15.50 inches.

Step-by-step explanation:

The given is,

Trash can has a height of 24.90 inches

Diameter of 15.50 inches

Step:1

Formula to calculate the volume of cylinder,

$Volume, V = \pi r^{2} h$ .............................(1)

Where, r - radius of cylinder

h - Height of cylinder

From given,

h - 24.90 inches

D - 15.50 inches

Diameter to radius conversion,

$Radius, r = \frac{d}{2}$

$= \frac{15.50}{2}$

r = 7.75 inches

Equation (1) becomes,

$V = \pi (7.75^{2} )(24.90)$

$= \pi (60.0625)(24.90)$

$=\pi (1495.556)$

$=(3.1416) (1495.556)$ (∵ $\pi = 3.1416$ )

= 4698.42

≅ 4698 cubic inches

Volume of trash can, V = 4698 cubic inches

Result:

The volume of cylinder shaped trash can is 4698 cubic inches, if the trash can has a height of 24.90 inches and a diameter of 15.50 inches.

6 0

2 years ago

Find the area of a circle with the circumference 18(pi)

JulsSmile [24]

Answer:

D 81 pi units^2

Step-by-step explanation:

The circumference of a circle is given by

C = 2 * pi *r

18 pi = 2 * pi *r

Divide each side by 2 * pi

18 pi / (2 pi) = 2 pi * r/ (2 pi)

9 = r

Now we can find the area. Area is given by

A = pi r^2

A = pi * 9^2

A = 81 pi units^2

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2 years ago

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If angle P measures 50 degrees, what is the measure of angle Q?

dolphi86 [110]

Answer:

130 degrees

Step-by-step explanation:

Since angles P and Q are supplementary (meaning that they add up to 180), we can set up the equation:

180 = 50 + Q

Q = 130

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2 years ago

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There are 487 books in the classroom library. What is this number rounded to the nearest ten?

DerKrebs [107]

487 rounded to the nearest ten is 490......because 487 is closer to 490 then it is to 480.

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3 years ago

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5. The rectangular pool has an area of 520 square feet. The length of 3

erastovalidia [21]

Answer:

z*(z - 3) = 520

Step-by-step explanation:

Use the following representations:

Width: W

Length: L = W + 3, or W = L - 3

Area = L*W = L*(L - 3) = 520

Equation b) is the correct one: z*(z - 3) = 520

4 0

2 years ago