Mid-Chapter
Check
- GIFT Tom and Angela shared the cost of
a gift for Jael. Angela contributed two
dollars more than twice the amount that
Tom contributed, who spent $6.00 on the
gift. Use the work backward strategy to
determine how much Angela spent on the
gift. (Lesson 1A)
Solve each equation. Check your solution.
(Lesson 1D)- 21 + m = 33 3. a - 5 = - 12
- p + 1.7 = -9.8 5. 56 = k - (-33)
- GEOMETRY The sum of the measures of the
angles of a triangle is 180°. Write and solve
an equation to find the missing measure m.
(Lesson 1D)
45 °
20 °m°- MULTIPLE CHOICE Trevor’s test score was
5 points lower than Ursalina’s test score.
If Ursalina scored 85 on the test, which
equation would give Trevor’s score d when
solved? (Lesson 1D)
A. 85 = d + 5
B. d - 5 = 85
C. 80 = d + 5
D. d - 5 = 80 - PETS Cameron has 11 adult Fantail
goldfish. This is 7 fewer Fantail goldfish
than his friend Julia has. Write and solve
a subtraction equation to determine
the number of Fantail goldfish g that
Julia has. (Lesson 1D)
9. MEASUREMENT The Grand Canyon has a
maximum depth of almost 5,280 feet. An
average four-story apartment building
has a height of 66 feet. Write and solve a
multiplication equation to determine the
number of apartment buildings b, stacked
on top of each other, that would fill the
depth of the Grand Canyon. (Lesson 2B)
Solve each equation. Check your solution.
(Lesson 2B)- 5 f = - 75 11. _w 3 = 16
- 63 = 7 y 13. - 28 = - 2 d
g
_ 12 = 6 15. 15 = _b
15- MULTIPLE CHOICE Michelann drove
44 miles per hour and covered a distance
of 154 miles. Which equation accurately
describes this situation if h represents
the number of hours Michelann drove?
(Lesson 2B)
F. 154 = 44 + h
G. 44 h = 154
H. 154 = 44 ÷ h
I. h - 44 = 154 - LAWN SERVICE Trey estimates he will earn
$470 next summer cutting lawns in his
neighborhood. This amount is 2.5 times
the amount a he earned this summer.
Write and solve a multiplication equation
to find how much Trey earned this
summer. (Lesson 2B)
Solve each equation. Check your solution.
(Lesson 2D)- -1.3x = 3.9 19. 3.7k = - 4.44
- 2.56 = 1.6c 21. _^34 z = 12
- ^25 n = 8 23. 87 = _^1
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Mid-Chapter Check 227227_C04_MCC_895130.indd 227 12/31/09 3:58 PM