The shirts were sold at $15 each.
Answer:
75 minutes
Step-by-step explanation:
Assuming that Clare will not take a break throughout the session
10 books=1 minute
750 books= x minutes
Cross multiplying to find the value of x
10x books=750 books minutes
Making x the subject
x=750 books minutes/(10 books)
x=75 minutes
This translates to 1 hours and 15 minutes
Therefore, Clare will require 75 minutes
You can use elimination
7x - 3y = 4
-10x + 3y = 2
Add both equations
-3x = 6, x = -2
Plug in -2 for x in one equation
7(-2) - 3y = 4
-14 - 3y = 4
-3y = 18, y = -6
Solution: x = -2, y = -6
Answer:
hypotenuse = 102.69
Step-by-step explanation:
7(13) + 4 = 95
3(13) = 39
hypotenuse² = 95² + 39² = 9025 + 1521 = 10546
hypotenuse = √10546 = 102.69
