| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.49 |
| Score | 0% | 70% |
Monty loaned Monica $1,500 at an annual interest rate of 5%. If no payments are made, what is the total amount owed at the end of the first year?
| $1,530 | |
| $1,515 | |
| $1,575 | |
| $1,605 |
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 $1,500
i = 0.05 x $1,500
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $1,500 + $75A tiger in a zoo has consumed 56 pounds of food in 4 days. If the tiger continues to eat at the same rate, in how many more days will its total food consumtion be 140 pounds?
| 5 | |
| 6 | |
| 2 | |
| 10 |
If the tiger has consumed 56 pounds of food in 4 days that's \( \frac{56}{4} \) = 14 pounds of food per day. The tiger needs to consume 140 - 56 = 84 more pounds of food to reach 140 pounds total. At 14 pounds of food per day that's \( \frac{84}{14} \) = 6 more days.
A bread recipe calls for 3\(\frac{5}{8}\) cups of flour. If you only have 1\(\frac{3}{4}\) cups, how much more flour is needed?
| 1\(\frac{3}{8}\) cups | |
| 1\(\frac{1}{8}\) cups | |
| 1\(\frac{7}{8}\) cups | |
| 2\(\frac{1}{2}\) cups |
The amount of flour you need is (3\(\frac{5}{8}\) - 1\(\frac{3}{4}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{29}{8} \) - \( \frac{14}{8} \)) cups
\( \frac{15}{8} \) cups
1\(\frac{7}{8}\) cups
How many hours does it take a car to travel 120 miles at an average speed of 15 miles per hour?
| 8 hours | |
| 2 hours | |
| 7 hours | |
| 6 hours |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)Solving for time:
time = \( \frac{\text{distance}}{\text{speed}} \)
time = \( \frac{120mi}{15mph} \)
8 hours
What is 7x5 x 7x4?
| 14x4 | |
| 49x9 | |
| 49x-1 | |
| 14x5 |
To multiply terms with exponents, the base of both exponents must be the same. In this case they are so multiply the coefficients and add the exponents:
7x5 x 7x4
(7 x 7)x(5 + 4)
49x9