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adoni [48]
2 years ago
8

Tim and sue share a small pizza. Tim eats 2/3 of the pizza. sue eats half as much pf the pizza as time doe. what fraction of the

pizza does sue eat
Mathematics
2 answers:
boyakko [2]2 years ago
7 0

Answer:

Sue eats 1/3 of the whole pizza

Step-by-step explanation:

Leokris [45]2 years ago
3 0
It’s 1/3 because it’s half of 2/3
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Step-by-step explanation:

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You are a lifeguard and spot a drowning child 50 meters along the shore and 40 meters from the shore to the child. You run along
GenaCL600 [577]

Answer:

38.559 meters

Step-by-step explanation:

Let the distance traveled along shore before the jump be "x"

 meters

time take during run: speed = distance / time therefore time = distance / speed, i.e .:

x / 4

Now the distances are:

40

50 - x

a right triangle is formed so it is possible to use Pythagoras:

d ^ 2 = 40 ^ 2 + (50 - x) ^ 2

d = [40 ^ 2 + (50 - x) ^ 2] ^ (1/2)

time taken during swin:

[40 ^ 2 + (50 - x) ^ 2] ^ (1/2) /1.1

total time:

x / 4 + [40 ^ 2 + (50 - x) ^ 2] ^ (1/2) /1.1

we derive and we are left:

1/4 - (1 / 1.1) * (50-x) / [40 ^ 2 + (50 - x) ^ 2] ^ (1/2)

we equal 0:

1/4 - (1 / 1.1) * (50-x) / [40 ^ 2 + (50 - x) ^ 2] ^ (1/2) = 0

1.1 * [40 ^ 2 + (50 - x) ^ 2] ^ (1/2) = 4 * (50 -x)

we square both sides:

1.21 * (40 ^ 2 + (50 - x) ^ 2 = 16 * (50 -x) ^ 2

1936 + 1.21 * (50-x ^ 2) = 16 * (50 -x) ^ 2

1936 = 14.79 * (50 -x) ^ 2

(50 -x) ^ 2 = 1936 / 14.79

(50 -x) ^ 2 = 130.9

50 - x = + -11.441

x = 50 + - 11.441

x1 = 50 + 11.441 = 61.441

x2 = 50 - 11.441 = 38.559

x1 cannot be because it is greater than 50 - x, the result would be negative, therefore the answer is x = 38.559 meters

4 0
3 years ago
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