Rebecca asked the people in her homeroom class what their favorite type of pizza was. If 18 out of 25 people said pepperoni, how many people would you expect to choose pepperoni
out of 350 people?

x = people who chose pepperoni = 252

Step-by-step explanation:

Number of people : people who chose pepperoni = 25 : 18

how many people would you expect to choose pepperoni

out of 350 people?

Let x = people who chose pepperoni

Number of people : people who chose pepperoni = 350 : x

Equate both ratios

25 : 18 = 350 : x

25/18 = 350/x

Cross product

25*x = 18*350

25x = 6,300

x = 6,300/25

x = 252

x = people who chose pepperoni = 252

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )