You can buy 6 lbs of apples for 9$ because 3*3=9, and 2*3=6 and it maintains a constant rate of change(random term that doesn't really apply but still works)9lb=144 oz...144 divided by 5 is 28 apples with change left over.
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6 0

4 years ago

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How do i use Scientific notation on these problems? Because I don't know...

saveliy_v [14]

Answer:

Simplify the problems first

Step-by-step explanation:

Before you can convert it to scientific notation, you should simplify it first.

#1 for example:

$(4 \times 10^5)^2\\$

Use PEMDAS to solve the equation:

$(4 \times 10^5)^2\\= 400000^2\\= 160000000000$

So, now we have a super big number. To write it in scientific notation, put a decimal place in the number before the zeroes start. It would be $1.6 \times 10^{11}$ since there are 11 places after the decimal.

8 0

3 years ago