Question

if 2160 equal to 2 to the power 9 into 3 to the power b into 5 to the power see the 3 to the power 9 into 2 to the power minus b into 5 to the power minus 3 is equal to what
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Answer 1

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Maths

Algebraic Expressions

Finding the Value of an Expression

If 2x × 3y × 5z = 2160, fi...

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Asked on November 22, 2019 by

Püja Sompura

If 2

x

×3

y

×5

z

=2160, find x, y and z. Hence, compute the value of 3

x

×2

−y

×5

−z

.

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ANSWER

Given,

2

x

×3

y

×5

z

=2160,

2160=2×2×2×2×3×3×3×5

2160=2

4

×3

3

×5

1

by comparision, we get,

x=4,y=3,z=1

3

x

×2

−y

×5

−z

=3

4

×2

−3

×5

−1

=

2

3

×5

3

4

=

40

81

Answer 2

Answer:

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