Given:
Prove:
Solution:
Putting the value of equation (ii) into the equation (i):
putting the value x into the equation (i):
Therefore, the value of x= 4
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Michelle’s mom is letting her paint her room pink. What formula would she use to figure out how much paint she needs.
1 answer:
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I used the Old Change New method and I crossed multiplied.
The answer is about $498 (I rounded $497.895875)
Check: $498>459.95 by 8.25%
The answer is about $498 (I rounded $497.895875)
Check: $498>459.95 by 8.25%