In step one, you are supposed to add 25 to both sides, because if you just subtract, it would be -5x-50=53
Answer:
17.71
Step-by-step explanation:
<span>9(2+5m) 9(2+5m)
(18+45m)
9*2
9*65m</span>
Answer:
<em>The washing machine cost $600 before tax</em>
Step-by-step explanation:
<u>Percentages
</u>
The washing machine cost $651 including a tax of 8.5%.
If x was the cost of the washing machine before tax, then the tax was:
x*8.5/100 = 0.085x
It was added to the original price:
x + 0.085x = 1.085x
That is the final price, thus
1.085x=$651
Solving:
x = $651/1.085
x = $600
The washing machine cost $600 before tax
