Answer:
Value of given expression
when p = -4 and q = 2 is -4.
Step-by-step explanation:
Given expression ,
We have to evaluate the value of the expression when p = -4 and q = 2
Consider the expression given 
To find the value a the given value just put the values in the given expression
becomes 
Solve further to get its value,


Thus, value of given expression
when p = -4 and q = 2 is -4.
8.99 / 6 = $1.49
you could round it to $1.50
Answer:
Leah has 48 marbles.
Step-by-step explanation:
Represent the number of marbles that each person has by L and D.
Leah has 28 more marbles than Dan: L = D + 28.
Then (1/3)L = (4/5)D. Here the LCD is 15, and so multiplying this equation by 15 will remove the fractions: 15(1/3)L = 15(4/5)D.
Therefore, 5L = 12D, and D = 5L/12.
Then, since L = D + 28, L = (5/12)L + 28, or
12L = 5L + 336, or
7L = 336, or
L = 336/7 = 48.
Leah has 48 marbles. That means that Dan has 20 marbles.
The unit rate represents 2 miles in 0.25 hour is 8 miles per hour
Step-by-step explanation:
Let us revise the meaning of rate and unit rate
1. A rate is a ratio that is used to compare different types of quantities
2. A unit rate shows how many units of the first type of quantity
corresponds to one unit of the second type of quantity
Examples:
Cost per item
Distance per hour
∵ Zephra ran 2 miles in 0.25 hour
- To find the unit rate make the denominator of the ratio = 1
∵ The unit rate = 
- Divide up and down by 0.25
∵ 2 ÷ 0.25 = 8
∵ 0.25 ÷ 0.25 = 1
∴ The unit rate = 
∴ The unit rate = 8 miles per hour
The unit rate represents 2 miles in 0.25 hour is 8 miles per hour
Learn more:
You can learn more about rate in brainly.com/question/9533500
brainly.com/question/317616
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