Answer:
2·10^3 = 2·1,000 = 2,000
2,000 · 7 = 14,000
1.4 x 10^4 is equivalent to 14,000
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Work Shown:
Multiply the given number by 7
7*(2 x 10^3) = (7*2) x 10^3 = 14 x 10^3
Then convert that to scientific notation
14 x 10^3 = (1.4 x 10^1) x 10^3
14 x 10^3 = 1.4 x (10^1 * 10^3)
14 x 10^3 = 1.4 x 10^4
Note how I added the exponents
$19.26 or $19.
Step-by-step explanation:
Sold DVD for 50% more of the purchase price of $12, so:
12 + 50/100 * (12) = 12 + 6 = 18.
The customer will pay 7% tax on $18.
18 * (1.07) = $19.26
x = 6
Hope this helps!
=)
πR³π9³=972π