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2 years ago

ASAP HELPPP PLEASE ANSWER CORRECT QUESTION!! GIVING OUT BRAINLY Stars!!!

1 answer:

3 0

Using proportions, it is found that due to the smaller division of the exchange rate by the cost, the souvenir would be less expensive in Egypt.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

The souvenir would be less expensive in the <u>country in which the division of the exchange rate by the cost is smaller</u>.

In Britain, the cost is of 17, with an exchange rate of 0.83, hence the cost in US dollars is:

c = 17/0.83 = $20.48.

In Egypt, the cost is of 288, with an exchange rate of 18, hence the cost in US dollars is:

c = 288/18 = $16.

16 < 20.48, hence the souvenir would be less expensive in Egypt.

More can be learned about proportions at brainly.com/question/24372153

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The population of Mathloversville is given by the equation P=38e^0.095t , where t is the number of years from now. How long will

lys-0071 [83]

Answer:

Approximately 107years

Step-by-step explanation:

Given the population of Mathloversville modelled by the equation P=38e^0.095t where t is the number of years from now.

To find the time it will take the population to reach 1million from now, we will substitute P = 1,000,000 into the equation given

1,000,000 = 38e^0.095t

Dividing both sides by 38

1,000,000/38 = e^0.095t

Taking the ln of both sides

ln(1,000,000/38) = ln e^0.095t

ln26,315.79 = 0.095t

10.18 = 0.095t

t = 10.18/0.095

t = 107.16years

It will take approximately 107years for the population to reach 1million

5 0

4 years ago

2/3 of the students at Lamar High School are girls. Of those girls, 2/3 sing in the school choir. What fraction of students at L

IgorC [24]

I think you do 2/3 times 2/3 that equals 4/9
not sure if this is right but hopefully I helped you

6 0

4 years ago

Read 2 more answers

Use compatible numbers to estimate the quotient. 5,590 divided by 72

laila [671]

Since

7 * 8 = 56

a good place to start could be

70 * 80 = 5,600

Then

72 * 80 = (70 + 2) * 80 = (70 * 80) + (2 * 80)

= 5,600 + 160 = 5,760

This number is larger than 5,590, so let's pick another factor smaller than 80 by subtracting away as many 72s as we need:

5,760 - 72 = 5,688 = 72 * 79

5,688 - 72 = 5,616 = 72 * 78

5,616 - 72 = 5,544 = 72 * 77

So the quotient is 77, and we have

5,590 = (72 * 77) + 46

5 0

4 years ago

A certain drink is made by adding 4 parts water to 2.5 part drink mix. What percent of the mixture is water? Omit % sign in your

Maru [420]

The mixture contains 61.5% of water.

<u>Step-by-step explanation:</u>

Total parts = 4+ 2.5 = 6.5

Parts of water =4

parts of drink = 2.5

Percent of water in the mixture = 4 × 100/ 6.5

= 400/6.5

= 61.53%

It is rounded to the nearest tenth as 61.5%.

8 0

4 years ago

n testing the reliability of DNA results used in crime labs, the new procedure matched DNA results to suspects 46 out of 50 time

timurjin [86]

Answer:

Step-by-step explanation:

Given that in testing the reliability of DNA results used in crime labs, the new procedure matched DNA results to suspects 46 out of 50 times.

i.e population proportion = 46/50 = 0.92

For 99% success rate

Here p the proportion follows normal distribution with mean = 0.92 and

Std error = $\sqrt{0.92*0.08/50} \\=0.038$

Margin of error for 99% = ±2.58*0.038 = ±0.099

Confidence interval lower bound = 0.92-0.099 = 0.8210

Upper bound = 0.92+0.0999 ~1

so Confidence interval - (0.821,1)

(p cannot exceed 1 so 1 is taken)

We are 99% sure the that this new DNA match procedure correctly identifies susspects between (0.821, 1)

since 99% confidence interval contians 1, there is evidence at the .01 level that this procedure will successfully match DNA results 99% of the time

8 0

3 years ago