Answer:
15
Step-by-step explanation:
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Given:
Consider the discount percent and SP are given.
To find:
The MP.
Solution:
Let x% be the discount percent Then




Multiply both sides by 100.

Divide both sides by
.

Therefore, the formula for MP is
, where x is the discount percentage.
Answer:
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Step-by-step explanation:
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<span>Total households = 127,900,000
Proportion of households having remote control and not
7 : 3
7x + 3x = 127,900,000
10x = 127,900,000
x = 12,790,000
Households having remote control = 7x
= 7 X 12,790,000
= 89,530,000
Answer:
89,530,000 households have TV remote controls.</span>
In standard form the answer will be if you go by (Ax+by=c )then I must say it's 3x-7y=9