Answer:
99 minutes, or an hour and 39 minutes.
Step-by-step explanation:
It takes Emma 18 minutes to do 14 pages. That means that we can set up a proportion, where Emma uses 18 minutes to do 14 pages, which is equal to x minutes per page!
14x = 18
7x = 9
x = 9/7
So, each page takes 9/7 minutes for Emma to finish.
She will do 77 pages. 77 * (9/7) = 11 * 9 = 99.
So, it will take Emma 99 minutes, or an hour and 39 minutes, to type and spell check 77 pages.
Hope this helps!
Answer:
divide y by x and you should know the answer for the blanks
Step-by-step explanation:
Answer:
30.79 cm^2 ( to nearest hundredth).
Step-by-step explanation:
Height = 3/2 of the radius ( as the ratio of r to h = 2:3.).
h = 3r/2. or 1.5r.
Volume of the cylinder = π r^2 h = 12.936
So π r^2 1.5r = 12.936
r^3 = 12.936 / (π * 1.5r)
r = 1.4 and h = 1.4 * 3/2 = 2.1
Total surface area 2π r^2 + 2πrh
= 2π(1.4)^2 + 2π1.4*2.1
= 9.8π
= 30.79 cm^2 answer
a) find the slope of the line using the given points.
Slope: 9 - -3/6-0 then slope is 12/6 which is 2
Then using formula: y = mx+b
-3 = 2(0) + b
b = -3
The equation is: y = 2x -3
B. Slope of a perpendicular is -reciprocal of first line. So here the slope will be -1/2
y = mx + b is used again
2 = -1/2(0) + b
b = 2
The equation is: y = -1/2x +2
