Question

you need to write the equation first and then solve for your variable.

1. jenny paid $8.54 for a pizza. she now has $16.79. with how much money did she start?

1. cayla was going to sell all of her stamp collection to buy a video game. after selling half of them she changed her mind. she then bought four more. how many did she start with if she now has 26?

1. isaac won 122 pieces of gum playing hoops at the county fair. at school he gave four to every student in his math class. he only has 2 remaining. how many students are in his class?

Explanation:

Define the variable and write the equation for Question 24

Using the Solving One-Step Equations knowledge point
Let \(x\) be the amount of money Jenny started with.

$$ x - 8.54 = 16.79 $$

Solve the equation for Question 24

Using the Solving One-Step Equations knowledge point

$$
LATEXBLOCK0
$$

Define the variable and write the equation for Question 25

Using the Solving Multi-Step Equations knowledge point
Let \(s\) be the number of stamps Cayla started with.

$$ \frac{1}{2}s + 4 = 26 $$

Solve the equation for Question 25

Using the Solving Multi-Step Equations knowledge point

$$
LATEXBLOCK1
$$

Define the variable, write, and solve the equation for Question 26

Using the Solving Multi-Step Equations knowledge point
Let \(n\) be the number of students in Isaac's class.

$$
LATEXBLOCK2
$$

Answer:

Question 24

Equation: \(x - 8.54 = 16.79\)
Solution: Jenny started with \(\$25.33\).

Question 25

Equation: \(\frac{1}{2}s + 4 = 26\)
Solution: Cayla started with \(44\) stamps.

Question 26

Equation: \(122 - 4n = 2\)
Solution: There are \(30\) students in his class.