22 is 40% of what number?

32 is 20% of what number?

22 is 40% of what number?

55

32 is 20% of what number?

160

Step-by-step explanation:

If 22 is 40% of a number you can divide 22 by 40 to find what one % would be.

22/40=.55

To find what the whole number is we can multiply that by 100, since we want 100% of the number we have is only 1%.

.55x100=55

Check:

40% of 55= 55x.4=22

Repeat this for the next problem.

32/20=1.6

1.6x100=160

Check:

160x.2=32

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation:

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)