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Butoxors [25]
3 years ago
15

The value of y varies directly with x, and y = −10 when x = 40. Identify the value of y when x = −5.

Mathematics
2 answers:
s2008m [1.1K]3 years ago
8 0
-10/40 = y / -5
cross multiply
(40)(y) = (-5)(-10)
40y = 50
y = 50/40
y = 5/4 <===
konstantin123 [22]3 years ago
5 0
The value of y when x is -5 is (-10 * -5) 40 = 1.25
y=1.25
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