Answer:
4 - ( 3x - 8 ) = 21
break the bracket first ,it gives : 4 - 3x + 8 = 21
12 - 3x = 21
- 3x = 21 - 12
- 3x = 9
-x = 9/3
-x = 3
X = - 3
[ check if the answer is correct, put -3 instead of X in the above equation ! we get 4 - { 3(-3) - 8 } = 21
4 - { - 9 - 8 } = 21
4 - { - 17 } = 21
break the bracket, minus and minus will multiply and will become plus , so we have 4 + 17 = 21 , hence 21 = 21 ! therefore X = -3
Answer:
$25.50
Step-by-step explanation:
3 people including Audrey went on the lunch break. If each spent $8.50, the total bill can be calculated in two ways
<u>Method 1 </u>
$8.50 x 3 = $25.50
<u>Method 2 </u>
$8.50 + $8.50 + $8.50 = $25.50
Answer: $130.50
Step-by-step explanation:
2.5 hours= $25 an hour
25+25+12.50=$62.50
Muffler=$65
65plus62.50
Total= $130.50
Answer:
Principal amount of investment.
Interest rate.
Simple or compound interest.
Time to hold the investment.
Step-by-step explanation:
There are several factors to consider when building a savings fund for planned long term needs.
First of all, we have to consider the amount of principal money we can invest in. It may be a one-time investment or a systematic investment plan. I case of a one-time investment we can easily calculate the investment amount but in case of monthly or yearly investment, we have to be sure that we will be able to invest the amount for the said period of time.
Second is the interest rate that the fund is giving i.e. APR of the fund. Again, take care to identify whether it is a simple interest or compound interest. Obviously the compound interest is better than simple interest as it gives more interest.
The third is the time for which you can hold the money without withdrawal. (Answer)
