The answer is (2,0)
............
Answer:
(x+0.2)+7.8 is the correct answer la
Answer:
102 gallons of 55% antifreeze
68 gallons of 80% antifreeze
Step-by-step explanation:
55% antifreeze: x
80% antifreeze: y
x + y = 170 ===> -.55(x + y = 170) ===> -.55x - .55y = -93.5
.55x + .80y = .65(170) ===> .55x + .80y = 110.5
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add the two equations to eliminate a variable: 0.25y = 17
divide by 0.25 to isolate y: y = 68
substitution to find x:
x + y = 170
x + 68 = 170
x = 102
Answer:
$2448 in a year
Step-by-step explanation:
$63,648 ÷ 52 = $1224 a week (this would be how much he earns per week)
Since he is not getting paid for two week we do 52 - 2 = 50 week of work.
Since per week salary is $1224 we multiply by 2 for two weeks = $2448
Before $63,648 - $2448 = $61200 per year (Now he's making $61200/year)
Hope this helps,
if so please mark Brainlist,
Thanks!
X=-3
y=2
<span>9x - y -2
= 9(-3) -(2)-2
= -27-2-2
= -31</span>
