Answer:
20 (.8) = 16
It takes him 16 minutes to walk to school.
This is because 80% as a decimal is .8 and you multiply that by how long it takes Person A to walk and you get 16.
Answer:
1. the square root of 89 or 9.4
2. the square root of 197 or 14.0
The answer is:
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x = 4y - 12 ; (Assuming the problem meant to solve for "x"; "in terms of "y").
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{Otherwise, the question might be "incomplete".}.
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The question seems incomplete; how can we solve for "x" when we do not know what "y" equals?
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However, it could be possible to "solve for x" in terms of "y". To so this, we need to isolate ""x" on one side of the equation:
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Given: <span>y=1/4 (x) + 3 ; Let us multiply the ENTIRE EQUATION (both sides) by "4", to get rid of the "1/4" (fraction coefficent) of "x", and to "cancel out" the "1/4" fraction cofficient of "x" to the implied "1"; to help solve for "x" :
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4 *{ </span>y= 1/4 (x) + 3} ;
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4y = x + 12 ; Now we can subtract "12" from EACH SIDE of the equation; to isolate "x" on one side of the equation; and to solve for "x":
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4y - 12 = x + 12 - 12 ;
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4y - 12 = x ; This is our answer:
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x = 4y - 12 ; (Assuming the problem meant to solve for "x"; "in terms of "y").
Answer:
Step-by-step explanation:
Sammie is x,,,, Jennie is 9 years younger than him. So, Jennie ( y) = x-9
According to second condition eq is
(X-5) = 4(y-5)
Place the value of y in eq 2
You will find x= 17
Put x in eq 1
Y = 8
