Answer:
2.2x - 4.4
Step-by-step explanation:
0.3(4x-8) - 0.5(-2x+4)
1.2x-2.4-0.5 (-2x+4)
1.2x - 2.4 + x-2
2.2x - 4.4
Hope this helped :)
Answer:
8.48%
Step-by-step explanation:
Given that,
The estimated bill = $480
Actual costing of the bill = $524.50
We need to find the percent error in the bill. It can be calculated as follows :
So, the percentage error in the bill is 8.48%.
Answer: 120
Step-by-step explanation:
Because it is
Answer:
The salt concentration of the mixed solution = 10%
Step-by-step explanation:
First assuming that the concentration of salt given is on a vol% basis.
First solution has 0.7 gallon of 5% salt
Amount of salt in this solution = 5% × 0.7 = 0.035 gallon
Second solution has 0.3 gallon of 22% salt
Amount of salt in this solution = 22% × 0.3 = 0.066 gallon
Total amount of salt in the resulting solution = 0.035 + 0.066 = 0.101 gallon
Total volume of the resulting solution = 0.7 + 0.3 = 1.00 gallon
Concentration of the mixture of salt = (0.101/1) = 0.101 = 10.1% = 10% to the nearest percent
Hope this Helps!!!
Answer:
120
Step-by-step explanation:
That's a guess, but it's the most logical one.
