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Mice21 [21]
3 years ago
6

A number increace by a 5 is 12

Mathematics
1 answer:
svetlana [45]3 years ago
8 0
7 is the number increased by 5 = 12
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Use the formula P=21+2w to find the width of a rectangle when the length is 18cm and perimeter is 48 ..
KIM [24]

Answer:

w=6

Step-by-step explanation:

P=2(L)+2(w)

48= 2(18)+2w

48=36+2w

12=2w

w=6

checking;

48= 2(18)+2(6)

48= 36+12

48= 48

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Answer:

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Decimal Form:

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On a particular day, the wind added 4 miles per hour to Alfonso's rate when he was cycling with the wind and subtracted 4 miles
Agata [3.3K]
(v+4)t=66

t=66/(v+4)

...

(v-4)t=42, using t found above in this equation gives you:

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66v=42v+432  subtract 42v from both sides

24v=432  divide both sides by 24

v=18

So his normal bicycling speed with no wind is 18 mph.
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