She made $40 last week because if you divide 80/2 it gives you 40. Because you are still counting the $5 she had spent.
Answer:
is the equivalent expression as 
is equal to 
.
Step-by-step explanation:
Considering the expression
As we know that
- Like terms are said to be the terms which hold the same variables raised to the same power.
- For example,
and 
are like terms as they contain the same variable 
raised to the same power.
Lets solve the expression
Therefore,
is the equivalent expression as is equal to .
Keywords: equivalent expression, like terms
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Answer:
The answer is below
Step-by-step explanation:
A student on the cross- county team runs 30 minutes a day as a part of her training. Write an equation to describe the relationship between the distance she runs in miles, D, and her running speed, in miles per hour, when she runs at a constant speed of 5.4miles per hour for m minutes, and then at b miles per hour for n minutes
Solution:
Given that the student runs for a total of 30 minutes per day. He runs at 5.4 miles per hour for m minutes, and then at b miles per hour for n minutes.
Hence:
m + n = 30
60 minute = 1 hour. Therefore, m minute = m/60 hour, n minute = n/60 hour.
The distance traveled is the product the speed in miles per hour and the time taken to cover the distance. Distance = speed * time
The total distance ran (D) is:
D = 5.4(m/60) + b(n/60)
12—— IT IS C ———————— thank me…!!!! Laterrrr!!!!
