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➷ (3.6 x 10^-5) / (1.8 x 10^2) = 0.0000002
Your answer is 2 x 10^-7
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That would be 6.64 / 1.35 = 4.9 times (to the nearest tenth.)
Answer:
The unknown number is 90
Step-by-step explanation:
This question requires a good understanding so as to interprets it well
And always ensure that all symbols used in representation are well stated so as to help the examiner or anyone who will mark it to understand better
So back to the question,let the unknown number be x
And two thirds of the unknown number is 2/3x
2/3x was decreased by 20 which can be written as 2/3x-20
And this decrease gives 40
That's,2/3x-20=40
Then go ahead to solve the question
Start by finding the LCM and the LCM is 3
2x-60/3=40
Cross multiply
2x-60=40×3
2x-60=120
Collect like terms by adding 60 to both sides
2x=180
Divide both sides by 2
x=90
Therefore the final answer is 90
W^-3
(4)^-3 = 1/(4)^3
1/64.
The solution is 1/64.
