MATHEMATICS MIDDLE SCHOOL

Karyn proofreads 15 pages in 2 hours for $40 What is her proofreading rate in pages per hour

Answers

Answer 1

Answer:

Answer:

7.5, and the fraction for it is 7 1/2.

Step-by-step explanation:

15 / 2 = 7.5 = 7 1/2

Karyn's proofreading rate is 7.5(7 1/2) pages per hour.

Hope this helps!

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Which integers are greater than –3? Choose all answers that are correct. A. –12 B. –6 C. –2 D. 1

Answers

Your answer would be C or D

Any number closer to i than -3 is greater than -3 so the answer is d and c

What two numbers add up to 1 but multiply to -30

Answers

$x;\ y-the\ numbers\n\n \left\{\begin{array}{ccc}x+y=1&\to x=1-y\nxy=-30\end{array}\right\n\nsubtitute\ x=1-y\ to\ second\ equation:\n\n(1-y)y=-30\ny-y^2+30=0\n-y^2+y+30=0\ \ \ \ \ |change\ signs\ny^2-y-30=0\ny^2-6y+5y-30=0\ny(y-6)+5(y-6)=0\n(y-6)(y+5)=0\iff y-6=0\ or\ y+5=0\n\Downarrow\ny=6\ or\ y=-5$

$x=1-y\n\nfor\ y=6\Rightarrow x=1-6=-5\n\nfor\ y=-5\Rightarrow x=1-(-5)=1+5=6\n\n=======================================\nAnswer:\boxed{6}\ and\ \boxed{-5}$

How is shape important when measuring a figure?

Answers

because you have to have a shape to even measure something a figure is a shape therefore a shape is important when measuring a figure

What is CXE?

pls help

Answers

Your answer is gonna be 152°

What is the exact volume of a sphere that has a radius of 7.5 ft?

_____pi ft^3

Answers

sphere formula: $(4)/(3) \pi x^(3)$
$(4)/(3) \pi 7.5^(3)$
$(4)/(3) 421.875 \pi$
562.5 $\pi$
V≈1767.15

The volume of a sphere is 4/3 * pi * radius^3. So the equation is 4/3 * pi * 7.5^3. First of all, 7.5^3 = 421.875. Then you 4/3 * pi * 421.875. 4/3 * 421.875 = 562.5. Then you do 562.5 x pi.
If you use pi as 3.14, then the answer is 1766.25.
If you use pi as 3.14159, then the answer is 1767.144375.
If you're crazy and use pi as 3.141592653589793238462643383279502884197 then the answer is roughly 1767.145867644259.
Hope I helped! :)

What is the average of 22,28,and 25.

Answers

the average is 25 because 22+28+25=75 and 75/3=25

22+28+25=75
avg = 75/3 = 25

Other Questions

Please answer this! Once again, my brain is failing me! And BTW i do not have summer school i am just getting ahead of myself so my mom can brag. xD

Mr. Hawkins is covering a room in carpet. The room measures 14 feet by 12 feet in a rectangular shape. Each square foot of carpet costs $2.90. What is the cost of carpeting the room?

there are 350 red flowers in a room. There are 70 more yellow flowers than red flowers. There are 140 fewer white flowers than yellow flowers. What is the ratio of the number of red flowers to the number of the yellow flowers to the white flowers?

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