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3 years ago

Bill and Gwyll are going to the on holiday to the USA

Mathematics

1 answer:

harkovskaia [24]3 years ago

3 0

Answer:

Bill

Step-by-step explanation:

1) we need to divide the dollars by the pounds to get the unit rate:

729/450=$1.62/1 pound(this is Bills exchange rate)

780/500= $1.56/1 pound(Gwens exchange rate)

1.62>1.56 so Bill has the better deal

hope this helps

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yuradex [85]

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3 years ago

Find the area of this circle. Use 3 for 7.<br> A = ar2<br> 7 cm<br> [?] cm2

Bond [772]

Answer:

147

Step-by-step explanation:

Since it says need to use 3 to represent pi

well show the formula.

The radius is 7 so we square it, and do the formula.

A=3r²

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3 years ago

The average time an individual reads online national news reports is 49 minutes. Assume the standard deviation is 16 minutes and

Olin [163]

Answer:

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 49 minutes

Standard Deviation, σ = 16 minutes

We are given that the distribution of time an individual reads is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(no more than 30 minutes)

$P( x \leq 610) = P( z \leq \displaystyle\frac{30 - 49}{16}) = P(z \leq -1.1875)$

Calculation the value from standard normal z table, we have,

$P(x \leq 30) = 0.118 = 11.8\%$

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

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3 years ago

A spinner is divided into 20 equal sections. What is the probability of the spinners pointer landing on section 5

BaLLatris [955]

One over twenty is the probability

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4 years ago

Jason is watering his garden. He uses 2.75 gallons of water each minute. How much

mamaluj [8]

Answer:

8.25 Gallons

Step-by-step explanation:

2.75 gallons * 3 minutes = 8.25 gallons

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3 years ago