Algebra exam paper

1 Answer:

 

Solve the equation: x – 12 = 13

 

2 Answer:

 

Solve the equation: -16 = 9 + x

 

3 Answer:

 

The selling price of a pair of pants is $34. If the store paid $8 less

for the pants, find the price the store paid.

 

4 Answer:

 

Does x = 5 satisfy the equation 17x = 85?

a. yes

b. no

 

5 Answer:

 

Does x = 3 satisfy the equation -16x = 48?

a. yes

b. no

 

6 Answer:

 

Solve the equation: 35a = -70

 

7 Answer:

 

Solve the equation: b/2 = 14

 

8 Answer:

 

You estimate that you spend $115 on groceries each month. How much

money do you spend on groceries each week?

 

9 Answer:

 

 

 

 

Referring to the figure, solve the equation shown.

 

10 Answer:

 

Solve the equation: 14x + 3x – 40 = 11

 

11 Answer:

 

Consecutive integers are integers that follow each other in order (for

example 5, 6, and 7). The sum of three consecutive integers is 417.

Let n be the first one. Write an equation that will determine

the three integers.

 

12 Answer:

 

Solve the equation in question #11 for the value of n.

 

13 Answer:

 

Solve the equation: 3x – 8 = -3x + 4

 

14 Answer:

 

Solve the equation: 40 – 14y = 6y

 

15 Answer:

 

A local gym charges nonmembers $10 per hour to use the tennis courts.

Members pay a yearly fee of $300 and $4 per hour for using the tennis

courts. Write an equation to find how many hours, h, you must

use the tennis courts to justify becoming a member.

 

16 Answer:

 

Solve the equation in question #15 for the value of h.

 

17 Answer:

 

You are designing a web page for your school’s biology club. You want

to include photos of the members on the page, which has a width of

640 pixels. You’ve decided that the left and right margins should be 24

pixels each and the space between each picture should be 16 pixels.

How wide can each picture be to fit four across the width of the page?

 

18 Answer:

 

Perform the indicated operation. Round the result to the nearest tenth

and then to the nearest hundredth. Separate your answers by a comma.

-49.256 + 17.197

 

19 Answer:

 

Perform the indicated operation. Round the result to the nearest tenth

and then to the nearest hundredth. Separate your answers by a comma.

14.357(-2.625)

 

20 Answer:

 

Solve the equation. Round the result to the nearest hundredth.

-15x + 73 = 26

 

21 Answer:

 

Solve the equation. Round the result to the nearest hundredth.

7y – 27 = 14

 

22 Answer:

 

Solve the equation. Round the result to the nearest hundredth.

1.5x + 7.4 = -1.8x – 6.9

 

23 Answer:

 

Solve the equation. Round the result to the nearest hundredth.

14.1 – 0.3x = 1.3x – 4.2

 

24 Answer:

 

Multiply the equation by a power of 10 to write an equivalent

equation with integer coefficients.

6.2x + 4.5 = 3.8x + 7.9

 

25 Answer:

 

Multiply the equation by a power of 10 to write an equivalent

equation with integer coefficients.

4.603y – 1.842 = -3.651y

 

26 Answer:

 

 

Referring to the figure, solve for b given the area of a

trapezoid is as follows: a = h(b+c)/2

 

27 Answer:

 

Given the simple interest formula, I = Prt, solve for t

 

28 Answer:

 

Rewrite the equation so that y is a function of x:

7x + y = 13

 

29 Answer:

 

Rewrite the equation so that y is a function of x:

3x + 5y = 15

 

30 Answer:

 

Use the result in question #28 to find y when x = -1.

 

31 Answer:

 

Use the result in question #29 to find y when x = -1.

 

32 Answer:

 

Find the unit rate: 3 tablespoons for 1.5 servings.

 

33 Answer:

 

Find the unit rate: $10.99 for 12 slices of pizza.

 

34 Answer:

 

Convert the measure. Round your answer to the nearest tenth.

15 teaspoons to tablespoons (1 tablespoon = 3 teaspoons).

 

35 Answer:

 

Find the percent. Round to the nearest whole percent.

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