I just wanted to check my answers with anyone willing to take the time.
Identify all sets that -3/4 belongs to:
a.whole #s, integers, rational #s
b.rational #s
c.integers, rational #s
d.odd #s, whole #s, integers, rational #s
Ithought it was C
How many centimeters are equal to 13/20 of a meter?
I thought it was 0.65
13/3b-4/3b
I thought it would be 9/3b.
To check your answers, let's go through each question step by step.
1. Identify all sets that -3/4 belongs to:
The sets mentioned are whole numbers, integers, and rational numbers.
Whole numbers are the non-negative integers starting from 0. (-3/4 is not a whole number because it is negative.)
Integers include all whole numbers and their negatives, including zero. (So, -3/4 is an integer.)
Rational numbers are numbers that can be expressed as a ratio of two integers, where the denominator is not zero. (-3/4 is a ratio of two integers, so it is a rational number.)
Therefore, the correct answer is option c.integers, rational #s.
2. How many centimeters are equal to 13/20 of a meter?
To find the answer, you need to know the relationship between centimeters and meters. There are 100 centimeters in 1 meter.
To determine how many centimeters are equal to 13/20 of a meter, you multiply the fraction by the conversion factor:
(13/20) * 100 = 65/20 = 3.25 centimeters
So, the correct answer is 3.25 centimeters (not 0.65).
3. 13/3b - 4/3b:
To simplify this expression, you need to have a common denominator, which is 3b.
Since both fractions already have the same denominator, you can simply subtract the numerators:
(13 - 4)/(3b) = 9/(3b)
So, the correct answer is 9/(3b) (not 9/3b).
I hope this helps you check your answers! If you have any more questions, feel free to ask.