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ipn [44]
4 years ago
5

Find the value of: a) 2x when x=5 b) 4y when = -3 c) 3z when z = 1.2

Mathematics
1 answer:
ohaa [14]4 years ago
5 0

Answer:

A. 10. B. -12. C. 3.6

Step-by-step explanation:

You will do this:

a) If x=5 (what about 2x)

=2x times 5 divide by x .That makes the answer 10

b) If y=-3(what about 4y)

=4y times -3 divide by y .That makes the answer -12.

c) If z=1.2(what about 3z)

=3z times 1.2divide by z. That makes the answer 3.6.

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If you would like to know how much does a 93-pound person weigh on the Moon, you can calculate this using the following steps:

120 pounds on the Earth ... 20 pounds on the Moon
93 pounds on the Earth ... x pounds on the Moon = ?

120 * x = 20 * 93      /120
x = 20 * 93 / 120
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The correct result would be 15.5 pounds on the Moon.
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