x is equal to 27.
In order to find the value of x, you have to use the average formula and solve for the missing variable. The mean formula is all of the numbers added together divided by the number of inputs.
(inputs added)/(number of inputs) = Average
(2 + 7 + x)/3 = 12 ----> Multiply by 3
9 + x = 36 ----> Subtract 9
x = 27
Hot dogs are sold in packs of 10. 30 divided by 10 equals 3. (30/10=3)
Buns are sold in packs of 8. 30 divided by 8 equals 3.75. (30/8=3.75) but we must round to 4 since we can’t buy 75% of a pack of buns.
3 packs of hotdogs and 4 packs of buns
125/1924 is the fraction when you divide those two numbers
<h2>
Answer:</h2>
The repair took:
2 hours and 45 minutes.
<h2>
Step-by-step explanation:</h2>
The worker charges $54 for the first hour, and $15.50 for each additional 15 minutes.
Let he does a job of additional 15 minutes for: x times.
This means that:
Cost for additional minutes will be: $ 15.50x
Hence, his total cost will be equal to: 54+15.50x
i.e.
54+15.50x=162.50
i.e.
15.50x=162.50-54
i.e.
15.50x=108.50
i.e.
x=108.50/15.50
x=7
Hence, the work took a total of:
60+15×7=165 minutes
which is: 2 hours and 45 minutes.
ANSWER
EXPLANATION
The given exponential equation is
The greatest common factor of 9 and 27 is 3.
We rewrite the each side of the equation to base 3.
Since the bases are equal, we can equate the exponents.
Expand the parenthesis to get:
Group similar terms