| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.53 |
| Score | 0% | 71% |
\({b + c \over a} = {b \over a} + {c \over a}\) defines which of the following?
commutative property for multiplication |
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distributive property for division |
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distributive property for multiplication |
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commutative property for division |
The distributive property for division helps in solving expressions like \({b + c \over a}\). It specifies that the result of dividing a fraction with multiple terms in the numerator and one term in the denominator can be obtained by dividing each term individually and then totaling the results: \({b + c \over a} = {b \over a} + {c \over a}\). For example, \({a^3 + 6a^2 \over a^2} = {a^3 \over a^2} + {6a^2 \over a^2} = a + 6\).
A tiger in a zoo has consumed 77 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 105 pounds?
| 8 | |
| 4 | |
| 6 | |
| 3 |
If the tiger has consumed 77 pounds of food in 11 days that's \( \frac{77}{11} \) = 7 pounds of food per day. The tiger needs to consume 105 - 77 = 28 more pounds of food to reach 105 pounds total. At 7 pounds of food per day that's \( \frac{28}{7} \) = 4 more days.
Which of the following is an improper fraction?
\(1 {2 \over 5} \) |
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\({7 \over 5} \) |
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\({a \over 5} \) |
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\({2 \over 5} \) |
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.
What is the next number in this sequence: 1, 10, 19, 28, 37, __________ ?
| 40 | |
| 37 | |
| 54 | |
| 46 |
The equation for this sequence is:
an = an-1 + 9
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 + 9
a6 = 37 + 9
a6 = 46
A factor is a positive __________ that divides evenly into a given number.
mixed number |
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improper fraction |
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integer |
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fraction |
A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.