Adding and Subtracting Rational Numbers
What is the absolute value of negative 8.9
8.9
Find the product, write your answer as a simplified fraction.
8/9 * 6/7
16/21
Simplify the expression.
4a - 9a + 6.2b + 8b
14.2b - 5a or -5a + 14.2b
Solve for p.
p - 3 1/6 = -2 1/2
p = 2/3
A nutrition label shown that every 1/4 cup of tuna has 1/2 gram of fat. Find the unit rate of grams of fat per cup of tuna.
-4 + (-7)
-11
Find the product.
3(-2 + 4)
6
Evaluate the expression when x = 2
-8x + 5 -2x + 5x
-5
Solve for y. Write your answer as an improper fraction.
26 = -8/5y
y = -208/5
Tell whether these ratios make a proportion using cross products.
6:9 and 12:18
Yes because 108 = 108
Find the sum, answer as a decimal.
6 + 4/5 + (-2.5)
4.3
Evaluate the expression
-4(32 - 8) +1
-3
Find the sum. Write your answer with the x term first, the y term second, and the constant third.
(7/4x - 5) + (2y - 3.5) + (-1/4x + 5)
3/2x + 2y - 3.5
Solve for p. Write your answer as an improper fraction.
-4(p - 9/4) = -5
p = 89/4
Hint: Use cross products.
x = 7.5
Find the sum, answer as a improper fraction or mixed number.
5 1/3 + 7.5 + (-3 1/6)
29/3 or 9 2/3
Evaluate the expression.
24 / (-4) + (-2) * (-5)
4
Find the difference. Write your answer with the q term first, the s term second, and the constant third.
(1 - 5q) - (2.5s +8) - (0.5q + 6)
-5.5q - 2s - 13
Tell whether the given value is a solution of the inequality.
p + 1.4 < 0.5
When p = 0.1
No
What point does a line on a graph need to hit to know that it is proportionate.
The origin or (0,0)
Your water bottle is 5/6 full. After tennis practice, the bottle is 3/8 full. How much of the water did you drink? Answer as a fraction.
Find the product, write your answer as a simplified fraction.
(-1/7 * 4/5) * (-7) * (-1/2)
-2/5
Factor the expression.
21m - 49n
7(3m - 7n)
Solve the inequality.
-4.5 > m/6
m < -27 or -27 > m
A map of Central Park is drawn for every 1 cm is equivalent to 320 miles. If the map is 30 cm wide what is the actual width of Central Park?
960 miles