Answer:
63
Step-by-step explanation:
It took 3 hours for her to deliver 189 total.
We need delivery per hour for our answer.
189 / 3 = 63
63 new papers are delivered per hour.
Subtract 15 from both sides
You want to focus on isolating the variable (x)
Hello there! :)
Answer:
1. 
2. 
Step-by-step explanation:
1. 3/5+4/15
First, you multiply by numerator and denominator.
3*3=9
5*3=15

Then, you had to combine by the fractions.

Add by the numbers from left to right.
9+4=13
<u><em>13/15 is the final answer.</em></u>
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2. 5/6-1/4
First, you multiply by 2 both sides of numerator and denominator.
5*2=10
6*2=12
10/12
3/12

Subtract by the numerator.
10-3=7
<em><u>7/12 is the final answer.</u></em>
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Hope this helps!
Thanks!
Have a nice day! :)
:D
-Charlie
The Answer: 3/12, 5/6, 4/5...
<u>Given</u>:
Juan has been saving for a new bike for two months. So far, he has saved $150 for the bike.
The money that he has saved so far is 30% of the cost of the bike.
We need to determine the total cost of the bike.
<u>Total cost of the bike:</u>
Let x denote the total cost of the bike.
The total cost of the bike is given by

The value of 30% can be written as 
Thus, we get;

Multiplying both sides by
, we have;

Simplifying, we have;


Thus, the value of x is 500.
Hence, the total cost of the bike is $500.