by what number should (2)^-3 be multiplied to get 5
Answers
Answered by
3
Answer:
Step-by-step explanation:
Let the number to be multiplied by (2^-3) to get the answer 5 be ‘n'
Thus,
n × (2^-3) = 5
which means,
n × (1/8) = 5
Multiplying both LHS and RHS by 8, we get
8 × n × 1/8 = 5 × 8
That means,
n = 40.
Answer: We should multiply (2^ -3) by 40 to get 5.
Answered by
4
Answer:
Step-by-step explanation:
(2)^-3 can be written as 1/(2)^3
1/(2)^3= 1/8
according to the question-
let the unknown no. = x
(2)^-3 × x = 5
⇒1/8 × x = 5
(transpose 1/8 to RHS)
⇒ x = 5÷ 1/8
x = 5× 8
⇒ x = 40
therefore we should multiply (2)^-3 with 40 to get 5
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hope it helps:))
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