To begin with, equivalent fractions represent the same part of a whole number. So I need to find a fraction, with a denominator of 20, that is the same value as 1/2:
1/2 = ?/20
1*10/2*10 = 10/20
Since the denominator needed to be 20, I multiplied the numerator and the denominator (1/2) by 10 to get 10/20. So, 1/2 and 10/20 are equivalent.
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Answer:
1. 9/20 hours doing math for 1 hour reading
2. 3 1/3 cups water to 1 cup concentrate
Step-by-step explanation:
1. You have done the math. Copy your answer into the blanks that are waiting for it.
9/20 hours on math for 1 hour reading
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2. 1 2/3 ÷ 1/2 = 5/3 × 2/1 = 10/3 = 3 1/3
3 1/3 cups of water to 1 cup of juice concentrate
Step-by-step explanation:
We have 2x + 6y = 22.
When x = 5,
=> 2(5) + 6y = 22
=> 10 + 6y = 22
=> 6y = 12
=> y = 2.
Hence y = 2 when x = 5.
