University:
Purdue University
Course:
MA 15300 | College Algebra
Academic year:

2024
Views:

136

Pages:

4
Author:

Delphinixxc3

Question 1 Write 2.25 as a fraction. Answer 1 2.25 = 225 100 100 225 Now, we can simplify it. 225 100 = 9 4 100 225 = 4 9 So, 2.25 can be written as 9 4 4 9 . Answer 2 2.25 = 225 100 = 9 4 100 225 = 4 9 Answer 3 Fraction form of 2.25 is 225 100 100 225 . Question 2 What’s the answer for 1 4 + 3 8 4 1 + 8 3 ? Answer 1 First, use the same base for both values to determine the smallest multiple of 4 and 8. 8 is the least common multiple. Turning 1 4 4 1 in a number with 8 as base: divide 8 ÷ 4 = 2 8÷4=2. Then multiply 1 4 4 1 by 2 and you get 2 8 8 2 . Now, calculate it: keep the base and add the tops. 2 8 + 3 8 = 5 8 8 2 + 8 3 = 8 5 Answer 2 1 4 + 3 8 = 2 8 + 3 8 = 5 8 4 1 + 8 3 = 8 2 + 8 3 = 8 5 Answer 3 1 4 + 3 8 = 5 8 4 1 + 8 3 = 8 5 Question 3 What is 6 10 10 6 in decimals? Answer 1 6 10 = 6 ÷ 10 = 0.6 10 6 =6÷10=0.6 Answer 2 When dividing a number by 10, the decimal point moves one place to the left. 6 10 = 0.6 10 6 =0.6 Answer 3 Decimals are a way of writing fractions which have a denominator that is a power of 10. In this case, the denominator is 10. 6 10 = 0.6 10 6 =0.6 Question 4 Convert 1.3 into a fraction and percent. Answer 1 1.3 = 13 10 10 13 as a fraction 1.3 = 130% Question 5 How do you write 2 5 5 2 as a decimal? Answer 1 We can write this as a decimal by making the denominator 10. It is 0.4. Explanation: The easiest way to write this as a decimal is to multiply it until the denominator is 10. 2 × 2 5 × 2 = 4 10 = 0.4 5×2 2×2 = 10 4 =0.4 Answer 2 2 5 = 0.4 5 2 =0.4