| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
How many 16-passenger vans will it take to drive all 99 members of the football team to an away game?
| 7 vans | |
| 6 vans | |
| 4 vans | |
| 5 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{99}{16} \) = 6\(\frac{3}{16}\)
So, it will take 6 full vans and one partially full van to transport the entire team making a total of 7 vans.
What is 5y7 x y5?
| 5y12 | |
| 5y5 | |
| 5y-2 | |
| 6y12 |
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:
5y7 x y5
(5 x 1)y(7 + 5)
5y12
| 2.4 | |
| 8.0 | |
| 1 | |
| 3.5 |
1
How many 1 gallon cans worth of fuel would you need to pour into an empty 10 gallon tank to fill it exactly halfway?
| 4 | |
| 5 | |
| 2 | |
| 3 |
To fill a 10 gallon tank exactly halfway you'll need 5 gallons of fuel. Each fuel can holds 1 gallons so:
cans = \( \frac{5 \text{ gallons}}{1 \text{ gallons}} \) = 5
If \(\left|a\right| = 7\), which of the following best describes a?
a = 7 or a = -7 |
|
none of these is correct |
|
a = -7 |
|
a = 7 |
The absolute value is the positive magnitude of a particular number or variable and is indicated by two vertical lines: \(\left|-5\right| = 5\). In the case of a variable absolute value (\(\left|a\right| = 5\)) the value of a can be either positive or negative (a = -5 or a = 5).