85 i hope this helps you.
(I need more charecters) the price might be $23.75
X = (1/2)y + 6
x + y = 21
Substitute (1/2)y + 6 as x into the equation x + y = 21 since x = (1/2)y + 6.
[(1/2)y + 6] + y = 21
0.5y + 6 + y = 21
1.5y = 15
y = 10
Same thing, now substitute 10 as y in the other equation.
x + y = 21
x + (10) = 21
x = 11
Answer:
Step-by-step explanation:
Answer:
C) 15
Step-by-step explanation:
This is following the 30-60-90 triangle ratio which goes x (leg) ,x sqrt 3 (leg), 2x (hypotenuse).
So multiply 7 1/2 by 2 to get 15
