X + y = 20 ---> x = 20 - y
2.5x + 3.7y = (3.5)(20) = 70
--> 2.5(20-y) + 3.7y = 70
--> 50 -2.5y +3.7y = 70
--> 1.2y = 20
---> y = 16.66
Answer: 16.66 gallons
Answer:1/3
Step-by-step explanation:
can you give branliest??
Answer:
Step-by-step explanation:
Yes i guess
Answer:
x is 7.5 so the answer is D
Step-by-step explanation:
Since the triangles are similar, you can flip the 1st one to match the 2nd.
Now you can write
16/12=10/x
(the 9 is irrelevant)
now cross multiply to solve for x
12x10=120
120/16=7.5
x is 7.5
Answer:
(-1,6)
Step-by-step explanation:
y=-x+ 7
Let x = -1
y = -1+7
y = 6
