Answer:
x = 112
Step-by-step explanation:
We can create two equations 1. one that calculates calories burned and 2.another that calculates minutes:
20*x + 5*y = 1200
x + y = 120
Then we can solve for x
x = 120 - y
then we can plug that into the top equation:
20(120 - y) + 5y = 1200
divide by 5:
4(120 - y) + y = 240
distribute:
480 - 4y + y = 240
and then do all that combining like factors what not and simplify and solve:
480 - 3y = 240
-3y = -240
y = 8
NOW WE CAN JUST PLUG IN THE ANSWER FOR Y TO FIND X
8+x =120
x = 112
-8 - 7x is the factored version.
Answer: The measure in degrees of angle S is 33.7°
Step-by-step explanation: Please see the attachments below for the complete question as well as the Step-by-step explanation
Answer:

Step-by-step explanation:
we know that
The total fabric that Mrs. Lin needs is equal to

Convert mixed number to an improper fraction



substitute



Convert to mixed number
