10. Define an operation ★ on the set of real numbers as follows: a ★ b = 0.5ab If 0.1 ★ b = 10, then evaluate bb. a. 500 b. 200 c. 20 d. 50 Please explain how you got your answer.

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Astronaut asked Nov 20, 2022

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10.

Define an operation ★ on the set of real numbers as follows:

a ★ b = 0.5ab

If 0.1 ★ b = 10, then evaluate bb.

a. 500

b. 200

c. 20

d. 50

Please explain how you got your answer.

Mathematics
high-school

Astronaut asked Nov 20, 2022

by Astronaut

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If a ★ b = 0.5ab, then

0.1 ★ b = 0.5 (0.1) b = 0.05b = 10

==> b = 10/0.05 = 200

Nickeisha answered Nov 24, 2022

by Nickeisha

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