8th Math Semester Review Take 2

Front

Back

0.00038

Front

In 2001, box office sales for moviegoers in the United States was $8.4 billion. Which of these is equivalent to 8.4 billion? 8.4 × 10⁹, 8.4 × 10^-6, 8.4 × 10^-9, 8.4 × 10⁶

Back

8.4 × 10⁹

Front

Which of the following is equivalent to 2,400 x 10,000? Options: 2.4 × 10⁵, 2.4 × 10⁶, 2.4 × 10⁷, 2.4 × 10⁸

Back

2.4 × 10⁷

Front

Henry and his brother each start a savings account. Henry begins with $200 and deposits $25 each month. His brother begins with $150 and deposits $35 each month. After how many months will the two brothers have the same amount in their savings account? Write the equation first, then solve

Back

5 months

Front

The algebra tiles shown below model an equation. Which equation best represents the model?

Back

2n – 7 = 3n – 3

Front

Who was correct in solving the equation: Justin (2.625), William (5), Sherice (21), Cynthia (15)?

Back

Sherice

Front

The model represents an equation. What value of x makes the equation true? Options: -0.5, 10, 0.4, 2.5

Back

2.5

Front

For which value of x will the two expressions have the same value? Options: 37.5, 7.5, -20, -100

Back

37.5

Front

Madeline deposited $750 into an investment account that earns 1.5% daily compounded interest. After a year how much money will be in the account? (One year = 365 days)

Back

$761.33

Front

After 5 years, how much more money will Emily have in her account compared to Erica's account if Emily deposits her money in a 3.75% quarterly compound interest account and Erica deposits her money in a 5% simple annual interest account?

Back

$22.41