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
C (3,1)
There is the answer and also a check to make sure hope this helps
Answer:
1
Step-by-step explanation:
For any triangle, you only need to know 3 pieces of information out of the 6 angles and sides to solve for the rest of the triangle.
Answer:
a)
+8x+15
b)-x-20
Step-by-step explanation:
a) (x+3)(x+5)
a)+5x+3x+15
a)+8x+15
b) (x+4)(x-5)
b) -5x+4x-20
b)-x-20
