Set up a proportion
12/144 = 17/y
cross multiply
12y = 144*17
12y = 2448
y = 2448/12
y = 204
Answer:
When they are equal, y=y, so we can say:
x^2+5x-2=x+1 subtract x from both side
x^2+4x-2=1 add 2 to both sides
x^2+4x=3, now add half the linear coefficient squared, (4/2)^2=4
x^2+4x+4=3+4 now the left side is a perfect square
(x+2)^2=7 now take the square root of both sides
x+2=±√7 subtract 2 from both sides
x=-2±√7
x=-2+√7 and -2-√7
y=x+1 the two points where these equations are equal are:
(-2-√7, -1-√7) and (-2+√7, -1+√7)
or approximately:
(-4.65, -3.65) and (0.65, 1.65)
Step-by-step explanation:
They get $85 for just getting in the truck and starting the engine.
To earn $100, they need another $15 for mileage.
$15 / 0.17 = 88.2 miles
Rounded to the nearest mile, it's <u>88 miles</u> (but that still leaves them 4¢ short).
To get this answer you would need to do 6 x 3/4 (or 0.75) to get 4.5.
Leah will need 4.5 (or 41/4) yards of material.
Hope This Helps!
~Cupkake
Answer:
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Step-by-step explanation:
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