| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
A tiger in a zoo has consumed 132 pounds of food in 11 days. If the tiger continues to eat at the same rate, in how many more days will its total food consumtion be 180 pounds?
| 8 | |
| 2 | |
| 4 | |
| 13 |
If the tiger has consumed 132 pounds of food in 11 days that's \( \frac{132}{11} \) = 12 pounds of food per day. The tiger needs to consume 180 - 132 = 48 more pounds of food to reach 180 pounds total. At 12 pounds of food per day that's \( \frac{48}{12} \) = 4 more days.
What is the next number in this sequence: 1, 3, 5, 7, 9, __________ ?
| 9 | |
| 11 | |
| 3 | |
| 4 |
The equation for this sequence is:
an = an-1 + 2
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 2
a6 = 9 + 2
a6 = 11
If a mayor is elected with 81% of the votes cast and 55% of a town's 13,000 voters cast a vote, how many votes did the mayor receive?
| 5,792 | |
| 4,219 | |
| 5,220 | |
| 6,435 |
If 55% of the town's 13,000 voters cast ballots the number of votes cast is:
(\( \frac{55}{100} \)) x 13,000 = \( \frac{715,000}{100} \) = 7,150
The mayor got 81% of the votes cast which is:
(\( \frac{81}{100} \)) x 7,150 = \( \frac{579,150}{100} \) = 5,792 votes.
If a rectangle is twice as long as it is wide and has a perimeter of 36 meters, what is the area of the rectangle?
| 98 m2 | |
| 32 m2 | |
| 2 m2 | |
| 72 m2 |
The area of a rectangle is width (w) x height (h). In this problem we know that the rectangle is twice as long as it is wide so h = 2w. The perimeter of a rectangle is 2w + 2h and we know that the perimeter of this rectangle is 36 meters so the equation becomes: 2w + 2h = 36.
Putting these two equations together and solving for width (w):
2w + 2h = 36
w + h = \( \frac{36}{2} \)
w + h = 18
w = 18 - h
From the question we know that h = 2w so substituting 2w for h gives us:
w = 18 - 2w
3w = 18
w = \( \frac{18}{3} \)
w = 6
Since h = 2w that makes h = (2 x 6) = 12 and the area = h x w = 6 x 12 = 72 m2
What is (y2)3?
| y6 | |
| y | |
| y-1 | |
| 2y3 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(y2)3