Name___________________________________________MATH 7
HW #23
1.
12
2
−
3
1
1
+ =
2. What is (95) ?
2
2
3. One of the highest snowfall rates ever recorded was in Silver Lake, Colorado, in
1
April 1921, when just over 7 feet of snow fell in 27 hours. What was that rate in
2
inches per hour?
4. Name the property: 7(9 + 2)= (7 x 9) + (7 + 2)
_______________
1
1
6
9
5. What is the numerical expression - (−20) +
equal to?
6. What is absolute value? _____________________________________________
7. How is the difference
11
15
1
- written as a decimal?
3
1
1
2
2
8. Name the property shown: - + (-5 +3)= (- + 5) + 3 _________________
9. What is the constant of proportionality for the table of values below? _______
x
1/2
5
6.5
Y
1
14
12.5
1
164
10.a)
1
5
2
+ = _____
3
7
2
9
3
b) − + (− ) = _______ c) -1 – (- 0.1) = _____
d)-4 – (-1) + (-3)= _______
e) -6(-0.3) = ______
f)
−8
−
1
9
= ______
1
11. Ryanne’s recipe uses 2 cups of sugar to make 2 dozen cookies. Jake’s recipe
2
1
uses 2 cups of sugar to make 3 dozen cookies. Which recipe uses more sugar for
4
a dozen cookies?
12. Michael says that the difference between Andrew’s and Charity’s ages is
always the same so Charity’s age is proportional to Andrew’s age. Is Michael
correct? Explain.
Andrew’s age
Charity’s age
2010
5
10
2015
10
15
2020
15
20
2025
20
25
__________________________________________________________________
__________________________________________________________________
13. Lilli can buy 2 pounds of apples for $7. Write an equation to represent the
cost, c, for a apples. _______________