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Pani-rosa [81]
3 years ago
5

In how many different ways can you answer a multiple choice test that has 5 questions and 3 choices for each answer?

Mathematics
2 answers:
Sladkaya [172]3 years ago
6 0
It would be 243 waysssssssssssssssssssss
algol133 years ago
5 0
3*3*3*3*3 = 243 ways
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If Tom brushes his teeth 1/12 hour a day. how many minutes does Tom brush his teeth in 2 weeks? What units of time do you need t
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6 0
3 years ago
The perimeter of a rectangle is 48 m. The area of the rectangle is 128 square meters. Find the dimensions of the rectangle.
Andreas93 [3]

Answer:

l = 16, w = 8

Step-by-step explanation:

Let l = length

Let w = width

Area = w * l

128 = w * l

w  = 128/l

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48 = 2w + 2l

48 = 2(128/l) +2l

48 = 256/l +2l

Multiply everything by l

48l = 256 + 2l^2

l^2 + 128 = 24l

l^2 + 128 -24l = 0

(l-16)(l-8)= 0

L = 16

L = 8

If you try them out, and test it, l = 16 would work:

2(16) + 256/16 = 48

32 + 16 =48

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16 * 8= 128

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Since I'm not sure if you are in advanced math or not, I will do it simple with guess and check

Try w is

3 0
3 years ago
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