| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.24 |
| Score | 0% | 65% |
Bob loaned Alex $1,300 at an annual interest rate of 5%. If no payments are made, what is the interest owed on this loan at the end of the first year?
| $36 | |
| $26 | |
| $24 | |
| $65 |
The yearly interest charged on this loan is the annual interest rate multiplied by the amount borrowed:
interest = annual interest rate x loan amount
i = (\( \frac{6}{100} \)) x $1,300
i = 0.05 x $1,300
i = $65
What is \( \frac{-9z^6}{1z^3} \)?
| -9z9 | |
| -9z18 | |
| -9z3 | |
| -9z\(\frac{1}{2}\) |
To divide terms with exponents, the base of both exponents must be the same. In this case they are so divide the coefficients and subtract the exponents:
\( \frac{-9z^6}{z^3} \)
\( \frac{-9}{1} \) z(6 - 3)
-9z3
If a car travels 80 miles in 4 hours, what is the average speed?
| 35 mph | |
| 20 mph | |
| 65 mph | |
| 30 mph |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)The __________ is the smallest positive integer that is a multiple of two or more integers.
greatest common factor |
|
least common factor |
|
least common multiple |
|
absolute value |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
How many 1 gallon cans worth of fuel would you need to pour into an empty 6 gallon tank to fill it exactly halfway?
| 7 | |
| 6 | |
| 3 | |
| 9 |
To fill a 6 gallon tank exactly halfway you'll need 3 gallons of fuel. Each fuel can holds 1 gallons so:
cans = \( \frac{3 \text{ gallons}}{1 \text{ gallons}} \) = 3