Algebra 1 fall final hour 4

7.

1 point

Simplify 8+3[3−(1)⁶]

2

14

−1

22

8.

1 point

Evaluate

for x=4

102

94

97

150

9.

1 point

Simplify by combining like terms.

10.

1 point

Solve $-14+s=32$

$s=-46$

$s=18$

$s=-18$

$s=46$

11.

1 point

A toy company's total payment for salaries for the first two months of 2005 is $21,894. Write and solve an equation to find the salaries for the second month if the first month's salaries are $10,205.

10,205 + x = 21,894
The salaries for the second month are $21,894.

10,205 + x = 21,894
The salaries for the second month are $10,947.

10,205 + x = 21,894
The salaries for the second month are $32,099.

10,205 + x = 21,894
The salaries for the second month are $11,689.

12.

1 point

The range of a set of scores is 23, and the lowest score is 33. Write and solve an equation to find the highest score. (Hint: In a data set, the range is the difference between the highest and the lowest values.)

h − 33 = 2 × 23
The highest score is 79.

h + 33 = 23
The highest score is −10.

h − 33 = 23
The highest score is 56.

x + 23 = 33
The highest score is 10.

13.

1 point

Solve 44 = 14 − 2x

x = −29

x = 15

x = −15

x = 29

14.

1 point

The formula p = nc − e gives the profit p when a number of items n are each sold at a cost c and expenses e are subtracted.

If p = 3750, n = 3000, and e = 900, what is the value of c?

0.80

1.25

1.55

0.95

15.

1 point

A video store charges a monthly membership fee of $7.50, but the charge to rent each movie is only $1.00 per movie. Another store has no membership fee but it costs $2.50 to rent each movie. How many movies need to be rented each month for the total fees to be the same from either company?

3 movies

7 movies

5 movies

9 movies

16.

1 point

The formula for the resistance of a conductor with voltage $V$ and current $I$ is $r=\frac{V}{I}$ . Solve for $V$ .

$V=Ir$

$I=Vr$

$V=\frac{I}{r}$

$V=\frac{r}{I}$

17.

1 point

Solve the proportion $\frac{5}{6}=\frac{x}{30}$

x = 36

x = 25

x = 0.03

x = 26

18.

1 point

Find 55% of 125.

68.75

227.27

6875

70.25

19.

1 point

What percent of 74 is 481? If necessary, round your answer to the nearest tenth of a percent.

6.5%

15.38%

650%

550%

20.

1 point

A compound is made up of various elements totaling 80 ounces. If the total amount of lead in the compound weighs 15 ounces, what percent of the compound is made up of lead? If necessary, round your answer to the nearest hundredth of a percent.

0.19%

81.25%

18.75%

5.33%

21.

1 point

Cindy makes $9000 a month plus commission. Her commission is 10% of everything she sells. If Cindy sold $30,000 worth of items this month, what is her salary for the month?

$309,000

$6,000

$12,000

$3,000

22.

1 point

If a digital camera costs $225 but it is on sale for 25% off, what will the final cost be?

$5,625

$200

$168.75

$56.25

23.

1 point

Describe the solutions of $6+y<10$ in words.

The value of y is a number equal to 3.

The value of y is a number greater than 4.

The value of y is a number less than or equal to 3.

The value of y is a number less than 4.

24.

1 point

Write the inequality shown by the graph.

$x\leq 3$

$x>3$

$x<3$

$x\geq 3$

25.

1 point

To join the school swim team, swimmers must be able to swim at least 500 yards without stopping. Let $n$ represent the number of yards a swimmer can swim without stopping. Write an inequality describing which values of $n$ will result in a swimmer making the team.

$n>500$

$n<500$

$n\geq 500$

$n\leq 500$

26.

1 point

Denise has $365 in her savings account. She wants to save at least $635. Write and solve an inequality to determine how much more money Denise must save to reach her goal. Let $d$ represent the amount of money in dollars Denis must save to reach her goal.