Hamid has gained weight.
2 answers:
Answer:
Hamid's normal weight is 80 kg .
Step-by-step explanation:
Let us assume that the normal weight be x .
As given
Hamid has gained weight.
He now weighs 88kg, which is 10% higher than his normal weight.
10% is written in the decimal form
= 0.10
10% increase in the weight = 0.10 × Normal weight.
= 0.10 × x
= 0.10x
Thus
Total weight of Hamid = Normal weight + 10% increase in the weight
88 = x + 0.10x
88 = 1.10x
x = 80 kg
Therefore the Hamid's normal weight is 80 kg .
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Answer:
2) x = 6 y = 7 3) x = -5 y= 2
Step-by-step explanation:
2) 10x - 8y = 4
2(-5x + 3y = -9)
-10x + 6y = -18
10x - 8y = 4 Add both equations together
-2y = -14
y = 7 Divide both sides by -2
10(x) - 8(7) = 4 Plug in 7 for the y to solve for x
10x - 56 = 4
+ 56 + 56 Add 56 to both sides
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x = 6 Divide both sides by 10
3) Where the two lines intersect, that is the solution to x and y.
The lines intersect at (-5,2). x = -5 y = 2
