(1.5× 10 −7 )×(3.6× 10 15 )÷(1.2× 10 −3 )=

Mathematics

1 answer:

inessss [21]3 years ago

8 0

(1.5 × 10 - 7) × (3.6 × 1015) ÷ (1.2× 10 - 3) = 3248

Step-by-step explanation:

The order of operations to solve a problem is:

Brackets
Exponents
Multiplication or division
Addition or subtraction

The problem is:

(1.5 × 10 - 7) × (3.6 × 1015) ÷ (1.2× 10 - 3)

At first solve the operations inside all the brackets

In the bracket 1.5 × 10 - 7 we must make multiplication at first then subtract

∵ 1.5 × 10 = 15

∵ 15 - 7 = 8

∴ (1.5 × 10 - 7) = 8

In the bracket 3.6 × 1015

∵ 3.6 × 1015= 3654

∴ (3.6 × 1015) = 3654

In the bracket 1.2 × 10 - 3 we must make multiplication at first then subtract

∵ 1.2 × 10 = 12

∵ 12 - 3 = 9

∴ (1.2 × 10 - 3) = 9

Now replace all the brackets by their answers

∴ (1.5 × 10 - 7) × (3.6 × 1015) ÷ (1.2× 10 - 3) = 8 × 3654 ÷ 9

- From the ordered above multiply at first then divide

∵ 8 × 3654 = 29232

∵ 29232 ÷ 9 = 3248

(1.5 × 10 - 7) × (3.6 × 1015) ÷ (1.2× 10 - 3) = 3248

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