SOLUTION: Which of the following proportions is TRUE??? a) 1:4 = 2:5 b) 6:9 = 10:12 c) 5:11 = 15:30 d) 2:7 = 4:14

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Question 884333: Which of the following proportions is TRUE???
a) 1:4 = 2:5
b) 6:9 = 10:12
c) 5:11 = 15:30
d) 2:7 = 4:14
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Which of the following proportions is TRUE???
a) 1:4 = 2:5
1/4 = 2/5 ?
Cross multiply
1*5 = 4*2 ?
Not true.
Do the others the same way.
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I don't usually answer questions with more than one question mark (?).
What do you think ??? accomplishes?
And, all CAPS is something I avoid.
Math is no place for hysteria.
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b) 6:9 = 10:12
c) 5:11 = 15:30
d) 2:7 = 4:14