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beks73 [17]
3 years ago
8

The variable Z is directly proportional to X. When X is 10, Z has the value 190.

Mathematics
1 answer:
irina [24]3 years ago
7 0
Since z is proportion to the x
z = a x
190 = a 10
a = 19

when x = 13
z = a x
z = 19 * 13
z = 247
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