Roman has 20 pencils in his backpack. If this is 25% of the total number of pencils, how many pencils are in his backpack? Explain.

5 pencils are in his packpack

Step-by-step explanation:

so basically he has 20 penicls and only 25 percent is in so basically 5 10 15 20 I MIGHT BE WRONG

He has 80 pencils

Step-by-step explanation:

Let p = pencils

25% of the total pencils are in the backpack

That number is 20

p*25% = 20

Changing to decimal form

.25p = 20

Divide each side by .25

.25p/.25 = 20/.25

p = 80

He has 80 pencils

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!