Magnitude (how much) and multitude (how many), the two principal types of quantities, are further divided as mathematical and physical.
Answer:
associative! property! of! addition!
Step-by-step explanation:
we change the order of the addends but the sum doesn't change
5x-3-7＝9+2x-16
5x-10＝2x-7
5x-2x＝-7+10
3x＝3
X＝1
Using a system of equations, it is found that since 20 child bikes and 6 adult bikes would require more testing than the allocated time, it is not possible to build this amount.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
- Variable c: number of child bikes.
- Variable a: number of adult bikes.
Each child bike requires 4 hours to build, as do each adult bike. The company has 100 hours of testing, hence:
4c + 4a = 100.
c + a = 25.
With 20 child bikes and 6 adult bikes in a week, we have that c = 20, a = 26, hence:
c + a = 26
20 child bikes and 6 adult bikes would require more testing than the allocated time, it is not possible to build this amount.
More can be learned about a system of equations at brainly.com/question/24342899
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