X + y = 10
x - y = 2
add the equations together
2x = 12
x = 6
6 + y = 10
y = 3
Ok what was it then...I could answer it....well depends what type of question it is
We know that y=7x, so we just need tu put it into the 1st equation
So we found x. Now we can find y
Answer:
x=1, y=7; or (1;7)
Perimeter = 2L + 2W → 240 = 2L + 2W → 120 = L + W → 120-L = W
Area = L x W → Area = L(120-L) → Area = 120L - L²
Find the derivative: dA/dL = 120 -2L → 0 = 120 - 2L → L = 60
Area = 120L - L² = 120(60) - (60)² = 7200 - 3600 = 3600
The maximum area is 3600 yds²
<span>the division of 412 divided by 97 can be estimated as:
412 can be estimated as: 400
97 can be estimated to 100
so, now on dividing 400/100 we get, the answer as 4.
To verify the estimation: when 412 is divided by 97, the answer is 4.24 which can be nearly written as 4 only.
Thus, our estimation was correct.</span>
