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4 years ago

13

Jamie is x years old. Jamie's brother Pete is 3 years older. Enter an expression into the box to represent the sum of their ages

.

2 answers:

natulia [17]4 years ago

5 0

The equation is 3 + x = s.

goldenfox [79]4 years ago

4 0

3+x=s
For s = sum of the ages and x = Jamie's age

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vampirchik [111]

The probability would be 0.9738.

We first find the z-score for each end of this interval:

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Using a z-table (http://www.z-table.com) we see that the probability that a score is less than the first z-score is 0. The probability under the curve to the left of, less than, the second z-score is 0.9738. Subtracting these we find the area between them:
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3 years ago

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3 years ago

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mina [271]

80 + 28 - 13 = 95 + 11 = 106

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3 years ago

lorasvet [3.4K]

Answer:

The speed of the boat is 20 km/hr

Step-by-step explanation:

Let s be the speed of boat in still water

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So, Distance traveled in upstream = $Speed \times time =(s-4) \times \frac{30}{60}$

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So, $(s-4) \times \frac{30}{60}=(s+4) \times \frac{20}{60}$

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3 years ago

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kolezko [41]

Answer:

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3 years ago

Read 2 more answers