Answer:
a= c+16
a-c= 16
Step-by-step explanation:
a = b + 12
b = c + 4
adding both eq.s, we get:
a+b = b+c+12+4
a+b = b+c+16
<em><u>a</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>c</u></em><em><u>+</u></em><em><u>1</u></em><em><u>6</u></em>
<em><u>a</u></em><em><u>-</u></em><em><u>c</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>1</u></em><em><u>6</u></em>
your sister would be 35
Answer: 15%
The Percentage decrease will be:
= Decrease in weight / Old weight × 100
= (200 - 170) / 200 × 100
= 30/200 × 100
= 15%
The Percentage decrease is 15%
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