Answer:
- premium: 165 gallons
- water: 120 gallons
Step-by-step explanation:
Let 'a' represent the amount of 95% antifreeze in the mix. Then the amount of water is (285 -a). The mix has this amount of antifreeze in it:
0.95a +0(285 -a) = 0.55(285)
a = 0.55/0.95(285) = 165 . . . gallons of 95%
285 -a = 285 -165 = 120 . . . . gallons of water
There are 120 gallons of water and 165 gallons of premium antifreeze in the mixture.
A is the answer i have to write 20 characters so I am writing random things
Answer:
(5,-3)
Step-by-step explanation:
y+3 = 3x-15
y= -2x + 7
plulg y in
-2x+7+3 = 3x-15
combine like terms
-2x+10 = 3x-15
add 2x to both sides and add 15 to both
5x=25
x=5
y=-2(5) + 7
y= -10 + 7
y= -3
(5,-3)
Answer:
There are 40 girls.
Step-by-step explanation:
40 to 24 is the same as 5 to 3.
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