Exam: Math Final
Study online at https://quizlet.com/_973bsw
1. Duncan shares 20 percent of all of his sales commis- y = 0.20x
sions with his personal assistant. If Duncan earns x dol-
lars in commissions and gives his assistant y dollars,
which equation correctly models this situation?
2. A car travels 18 miles per gallon of gas used. Which y = 18x
equation best represents the proportional relationship
between the y miles that the car has traveled and the
x gallons of gasoline that it has used?
3. What is the sale price of a phone that was originally $169.15
$199 but that has been marked down by 15 percent?
4. A bookstore bought a case of 10 books at a wholesale $10.50
price of $84. The bookstore will sell the books at a 25
percent markup, and each book will be sold for the
same amount. How much will they sell each book in
the case for?
5. Selina and three of her classmates each wrote out 2. Divide the difference
the steps for finding an approximate percent change. by the original number. 3.
They all agreed on the first and fourth step:1. Find Multiply the quotient by
the positive difference between the original num- 100 to change it from a
ber and the new number.2. ________________________3. decimal to a percent.
________________________4. Round the answer if neces-
sary.They did not agree on steps 2 and 3. Which in-
structions are correct for steps 2 and 3?
6. When Nancy started middle school, she was 60 inches 10 percent increase
tall. When she started high school, she was 66 inches
tall. What was the percent change in her height?
7. 119 and -119
, Exam: Math Final
Study online at https://quizlet.com/_973bsw
Matthew plots an integer on a number line that has an
absolute value of 119. Gabrielle plots a different inte-
ger on the same number line that also has an absolute
value of 119. Which two integers could Matthew and
Gabrielle have plotted?
8. Chris is standing on a cliff that is 3 feet above sea level. 13
He dives into the water and descends to a depth 10
feet below the surface of the sea. On a number line,
what is the distance between the two elevations?
9. What is the value of the expression below? 1
-50 + 51
10. Julio predicted that the average high temperature for -3 C
January would be . The actual average high temper-
ature was 4 degrees higher than Julio's prediction.
Which describes the actual average high temperature
for January?
11. Allison is evaluating the expression -5 - (-2) using inte- remove 2 negative tiles
ger tiles. She begins with 5 negative tiles as shown.
What should Allison do next to find the value of the
expression?
12. Laura determined the difference between 8 and -2 The 8 should have re-
using the additive inverse. Her steps are shown below. mained positive.
8 - (-2) = -8 + 2 = -6
Which best describes the error in Laura's work?
Study online at https://quizlet.com/_973bsw
1. Duncan shares 20 percent of all of his sales commis- y = 0.20x
sions with his personal assistant. If Duncan earns x dol-
lars in commissions and gives his assistant y dollars,
which equation correctly models this situation?
2. A car travels 18 miles per gallon of gas used. Which y = 18x
equation best represents the proportional relationship
between the y miles that the car has traveled and the
x gallons of gasoline that it has used?
3. What is the sale price of a phone that was originally $169.15
$199 but that has been marked down by 15 percent?
4. A bookstore bought a case of 10 books at a wholesale $10.50
price of $84. The bookstore will sell the books at a 25
percent markup, and each book will be sold for the
same amount. How much will they sell each book in
the case for?
5. Selina and three of her classmates each wrote out 2. Divide the difference
the steps for finding an approximate percent change. by the original number. 3.
They all agreed on the first and fourth step:1. Find Multiply the quotient by
the positive difference between the original num- 100 to change it from a
ber and the new number.2. ________________________3. decimal to a percent.
________________________4. Round the answer if neces-
sary.They did not agree on steps 2 and 3. Which in-
structions are correct for steps 2 and 3?
6. When Nancy started middle school, she was 60 inches 10 percent increase
tall. When she started high school, she was 66 inches
tall. What was the percent change in her height?
7. 119 and -119
, Exam: Math Final
Study online at https://quizlet.com/_973bsw
Matthew plots an integer on a number line that has an
absolute value of 119. Gabrielle plots a different inte-
ger on the same number line that also has an absolute
value of 119. Which two integers could Matthew and
Gabrielle have plotted?
8. Chris is standing on a cliff that is 3 feet above sea level. 13
He dives into the water and descends to a depth 10
feet below the surface of the sea. On a number line,
what is the distance between the two elevations?
9. What is the value of the expression below? 1
-50 + 51
10. Julio predicted that the average high temperature for -3 C
January would be . The actual average high temper-
ature was 4 degrees higher than Julio's prediction.
Which describes the actual average high temperature
for January?
11. Allison is evaluating the expression -5 - (-2) using inte- remove 2 negative tiles
ger tiles. She begins with 5 negative tiles as shown.
What should Allison do next to find the value of the
expression?
12. Laura determined the difference between 8 and -2 The 8 should have re-
using the additive inverse. Her steps are shown below. mained positive.
8 - (-2) = -8 + 2 = -6
Which best describes the error in Laura's work?
