Your Results | Global Average | |
---|---|---|
Questions | 5 | 5 |
Correct | 0 | 3.38 |
Score | 0% | 68% |
What is the next number in this sequence: 1, 10, 19, 28, 37, __________ ?
42 | |
45 | |
46 | |
38 |
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
Solve 2 + (2 + 2) ÷ 2 x 2 - 42
1\(\frac{4}{5}\) | |
-10 | |
\(\frac{4}{9}\) | |
2\(\frac{2}{3}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
2 + (2 + 2) ÷ 2 x 2 - 42
P: 2 + (4) ÷ 2 x 2 - 42
E: 2 + 4 ÷ 2 x 2 - 16
MD: 2 + \( \frac{4}{2} \) x 2 - 16
MD: 2 + \( \frac{8}{2} \) - 16
AS: \( \frac{4}{2} \) + \( \frac{8}{2} \) - 16
AS: \( \frac{12}{2} \) - 16
AS: \( \frac{12 - 32}{2} \)
\( \frac{-20}{2} \)
-10
A bread recipe calls for 3\(\frac{5}{8}\) cups of flour. If you only have \(\frac{5}{8}\) cup, how much more flour is needed?
3\(\frac{1}{8}\) cups | |
1 cups | |
3 cups | |
2\(\frac{1}{4}\) cups |
The amount of flour you need is (3\(\frac{5}{8}\) - \(\frac{5}{8}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{29}{8} \) - \( \frac{5}{8} \)) cups
\( \frac{24}{8} \) cups
3 cups
A sports card collection contains football, baseball, and basketball cards. If the ratio of football to baseball cards is 3 to 2 and the ratio of baseball to basketball cards is 3 to 1, what is the ratio of football to basketball cards?
5:6 | |
9:2 | |
3:6 | |
3:4 |
The ratio of football cards to baseball cards is 3:2 and the ratio of baseball cards to basketball cards is 3:1. To solve this problem, we need the baseball card side of each ratio to be equal so we need to rewrite the ratios in terms of a common number of baseball cards. (Think of this like finding the common denominator when adding fractions.) The ratio of football to baseball cards can also be written as 9:6 and the ratio of baseball cards to basketball cards as 6:2. So, the ratio of football cards to basketball cards is football:baseball, baseball:basketball or 9:6, 6:2 which reduces to 9:2.
What is the greatest common factor of 56 and 32?
2 | |
14 | |
22 | |
8 |
The factors of 56 are [1, 2, 4, 7, 8, 14, 28, 56] and the factors of 32 are [1, 2, 4, 8, 16, 32]. They share 4 factors [1, 2, 4, 8] making 8 the greatest factor 56 and 32 have in common.