Answer:



Step-by-step explanation:
Given



From the rows, the equation is:
--- (1)
--- (2)
--- (3)
Make A the subject in: 

Substitute
in 


Make B the subject


Substitute
in 


Collect like terms


Divide by 9

Recall that:




Recall that:




Hence:



Answer: Variable: <u>y= Number of sour straws.</u>
Inequality: <u>7.50+1.50y ≤ 15</u>
Solution<u>: </u><u>y ≤ 5</u>
Step-by-step explanation:
Let y= Number of sour straws.
Cost for nachos = $7.50
Cost per sour straw = $1.50
Total cost = 7.50+1.50y
Money he has $15
Total cost must be less than orequal to the money he has.
So required inequality: 7.50+1.50y ≤ 15
Subtract 7.50 from both sides

He can buy at most 5 sour straws.
Answer:
Do you got a pic so i could see it
Step-by-step explanation:
The distance a tire travels is equal it it’s circumference.
circumference = pi x radius x 2
Circumference = 25.13 inches
Rounded to nearest inch = 25 inches
Answer:
E, 50%
Step-by-step explanation: