3 years ago

Christopher read 4 books in 2 months. What was his rate of reading in books per month?

Mathematics

1 answer:

dangina [55]3 years ago

8 0

Christopher read 2 books each month which mean 4 books in 2 months

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Hộp I có 10 sản phẩm tốt, 2 hỏng; hộp II có 20 sản phẩm tốt, 4 hỏng. Chọn ngẫu nhiên một hộp, rồi từ đó lấy ta một sản phẩm.

GaryK [48]

Answer:

Step-by-step explanation:

6 0

2 years ago

Solve for x:<br> <img src="https://tex.z-dn.net/?f=x-2%28x-%5Cfrac%7B3%7D%7B2%7Dx%29%3D2%284-x%29%2B10" id="TexFormula1" title="

Arlecino [84]

Answer:

$x = \frac{9}{2}$

Step-by-step explanation:

x - 2 (x - $\frac{3x}{2}$ ) = 2 (4 - x) + 10

x − 2 × $\frac{-x}{2}$ =2(4−x)+10

x−(−x)=2(4−x)+10

x+x=2(4−x)+10

2x=2(4−x)+10

2x=8−2x+10

2x=−2x+18

2x+2x=18

4x=18

$x = \frac{18}{4}$

$x = \frac{9}{2}$

7 0

2 years ago

The surface area of a cylinder is 520 ft.² The area of one of the bases is 254.34 ft.² find the height of the cylinder

morpeh [17]

Answer:

The height is 0.2003ft

Step-by-step explanation:

Given

$Surface\ Area = 520$

$Base\ Area = 254.34$

Required

The height of the cylinder

The base area of the cylinder is:

$Base\ Area = \pi r^2$

This gives

$254.34 = 3.14 * r^2$

Divide by 3.14

$81 = r^2$

Take square root of both sides

$r = \sqrt{81$

$r = 9$

The surface area of a cylinder is:

$Surface\ Area = 2\pi rh + 2\pi r^2$

This gives

$520 = 2*3.14* 9h + 2*3.14* 9^2$

$520 = 56.52h + 508.68$

Collect like terms

$56.52h = 520 -508.68$

$56.52h = 11.32$

Solve for h

$h = 11.32/56.52$

$h = 0.2003ft$

3 0

2 years ago

Quadratic equations can always be factored. True False

Ahat [919]

<span>Hey! :)

False, Quadratic can sometimes be solved by factoring. It can ALWAYS be solved using the quadratic formula.

Hope this helps! :)</span>

6 0

2 years ago

100PTS AND BRAINLIEST PLEASE HELP

Elina [12.6K]

Answer:

b- ∠ACB ≅ ∠E'C'D'; ∠D'E'C' ≅ ∠BAC

Step-by-step explanation:

I got it right on the test :))

4 0

2 years ago

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