| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.86 |
| Score | 0% | 77% |
Which of the following is a mixed number?
\(1 {2 \over 5} \) |
|
\({7 \over 5} \) |
|
\({5 \over 7} \) |
|
\({a \over 5} \) |
A rational number (or fraction) is represented as a ratio between two integers, a and b, and has the form \({a \over b}\) where a is the numerator and b is the denominator. An improper fraction (\({5 \over 3} \)) has a numerator with a greater absolute value than the denominator and can be converted into a mixed number (\(1 {2 \over 3} \)) which has a whole number part and a fractional part.
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 15% off." If Charlie buys two shirts, each with a regular price of $46, how much will he pay for both shirts?
| $55.20 | |
| $39.10 | |
| $85.10 | |
| $6.90 |
By buying two shirts, Charlie will save $46 x \( \frac{15}{100} \) = \( \frac{$46 x 15}{100} \) = \( \frac{$690}{100} \) = $6.90 on the second shirt.
So, his total cost will be
$46.00 + ($46.00 - $6.90)
$46.00 + $39.10
$85.10
What is (x5)5?
| 5x5 | |
| x25 | |
| x0 | |
| x10 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(x5)5What is the distance in miles of a trip that takes 5 hours at an average speed of 35 miles per hour?
| 270 miles | |
| 300 miles | |
| 175 miles | |
| 90 miles |
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 distance:
distance = \( \text{speed} \times \text{time} \)
distance = \( 35mph \times 5h \)
175 miles
How many 16-passenger vans will it take to drive all 69 members of the football team to an away game?
| 10 vans | |
| 5 vans | |
| 7 vans | |
| 6 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{69}{16} \) = 4\(\frac{5}{16}\)
So, it will take 4 full vans and one partially full van to transport the entire team making a total of 5 vans.