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Eva8 [605]
4 years ago
14

Sam has been collecting pennies all year long.He has collected 700 pennies.His younger brother started collecting pennies also.H

e has 1/10 as many pennies as Sam. How many pennies has Sam's younger brother collected?
Mathematics
1 answer:
andrezito [222]4 years ago
8 0
Sam’s younger brother has collected 70 pennies
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Answer: (2x + 32)(2x + 25) = 1600

Step-by-step explanation:

The former length of the rectangular plot = 32 feets

The former width of the rectangular plot =25 feets

The former area of the rectangular plot is former length of the rectangular plot × former width of the rectangular plot

= 32×25 = 800 feet^2

If the area is doubled, the new area would 800 × 2 = 1600 feet^2

If an equal width of x feets was added to each side of the plot,

The new length would be (32 + 2x) feets.

The new width would be (25 + 2x) feets. The 2x is due to the fact that there are 2 lengths and 2 widths

The new area would be

(2x + 32)(2x + 25) = 1600

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malfutka [58]

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Step-by-step explanation:

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