Explain your answer!

40 words

Step-by-step explanation:

120 words/3 minutes is the same as 120 divided by 3

so, you divide 120 by 30 and you get 40 words per minute

Step-by-step explanation:

We are going to make a questioning. Look:

If in 3 minutes she can type 120 word

In    1 min  how many will she type X

We adopt X as a thing witch we don't know. This forms a Rule of three. It happens when we have got 3 values but miss us 1 yet.

Generraly you'll sort the values by type. In this case, I put minutes under minute and words under words.

A Fast way to solve is: multiply where there is not an incognt (1*120) and divide by what left (3)

So:

1*120=120

Divided by 3 (120/3) it's equals 40 words per minute.

Good studies!

-ZehTheJohn

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi