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3 years ago

9

Express your answer in scientific notation. 2.2 · 106 – 4.3 · 105 = PLEASE SOMEONE ANSWER

1 answer:

NeX [460]3 years ago

6 0

-2.183 • 10^2

Step by step

2.2•106 - 4.3•105

223.2-451.5

-218.3

(move decimal place 2 to the left - the 2 represents what the power of 10 should be and since the decimal moves to the left, that means that the 2 should be positive)

so your answer is -2.183 • 10^2

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3 years ago

If Rib-eye steaks are on sale for $8.52 per pound. Ms. Markum bought a 0.9-pound steak. How much did the steak cost?

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Answer: The steak costs $ 7.67.

Step-by-step explanation:

Given: Cost per pound of Rib-eye steaks = $8.52

Ms. Markum bought a 0.9-pound steak.

To find : cost of 0.9 pound steak =

Then cost of 0.9 pound steak = 0.9 x (Cost per pound of Rib-eye steaks )

= $ (0.9 x 8.52)

= $7.668 ≈ $ 7.67

Hence, the steak costs $ 7.67.

7 0

3 years ago