Answer:what happened to c and a
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
angle adjacent to 163 = 27
x=27 by alternate angles equal principle.
Answer:
a) 50
b) 6.71
c) 0.0681
Step-by-step explanation:
check the attached file below
Answer:
42 gallons 45% antifreeze
28 gallons 95% antifreeze
Step-by-step explanation:
If x is volume of 45% antifreeze, and y is volume of 95% antifreeze, then the total volume is:
x + y = 70
And the total amount of antifreeze is:
0.45 x + 0.95 y = 0.65 (70)
Solving by substitution:
0.45 x + 0.95 (70 − x) = 0.65 (70)
0.45 x + 66.5 − 0.95 x = 45.5
21 = 0.5 x
x = 42
y = 28
