To solve an addition problem, you simply add one number to the other. For example,
If I want to add 4 to 5, I would write the equation 4 + 5 = 9.
To solve a subtraction problem, you simply take a number away from another. For example,
If I want to take 5 away from 9, I would write the equation 9 - 5 = 4.
Hope I helped! :)
Answer:
y = (4/7)x + 78/7
Step-by-step explanation:
We can have books equal to y and cost equal to x.
Solving for the slope, we get 4/7.
Plug this along with one of the data sets to solve for b.
b = 78/7
Answer:
14
Step-by-step explanation:
Step-by-step explanation:
Set up a proportion.
x/10=110/100
x=11
Set up a proportion.
3.5/50=y/100
y=7
