Answer:
x is 5 cm as the entire base is 10 cm, so 10/2 = 5
The ratio that is not equivalent is B. 7:15
The reason why it's not equivalent because for the other ratios:
1:5 could be turned into 2:10 by multiplying 1 and 5 by 2.
4:20 could turn into 2:10 by dividing both numbers by 2.
And 8:40 could be divided by 4 to get 2:10.
But you can't do anything to 7:15 to make it 2:10.
Answer:
refer to the picture for step by step answer
hope it helps
Answer:
C
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