Question

Angelica needs 1.25 pounds of beef to make 4 person tacos. How many pounds of beef will she need to feed 10 people?

Answer 1

Answer: 3.125 pounds

Explanation:

Skills used:

1. Creating equations with one variable
2. Solving equations with one variable
3. Solving one-step equations
4. Ratios

Steps:

1. Create an equation--> x will be how many pounds of beef to feed one person: 4x=1.25
2. Solve this equation--> divide by 4: x=0.3125
3. Make a ratio--> 1 person : 0.3125 pounds of beef
4. Multiply it by 10--> 10 people: 3.125 pounds of beef

Answer 2

3.125 pounds of beef

Explanation:

Set up a proportion where x is the number of pounds of beef needed to feed 10 people:

`(1.25)/(4)` =
`(x)/(10)`

Cross multiply and solve for x:

12.5 = 4x

3.125 = x

So, to feed 10 people, she will need 3.125 pounds of beef