All categories

3 years ago

How 17 | 12. The Mad hatter is stocking up on tea for his

Mathematics

1 answer:

e-lub [12.9K]3 years ago

3 0

Answer:

About 2.3 boxes of tea

Step-by-step explanation:

If we divide the price by the number of boxes, in this case, 66 / 5 we would get 13.2. So the means that each box would cost $13.20. So if we divide 30 by the cost of each box we would get approximately 2.3 boxes of tea. Hope this helps :)

You might be interested in

Who know how to do this ?

nadya68 [22]

It seems to me this just wants you to add the 3 equations.
2m + 2n +5p

3 0

3 years ago

Assume a researcher recruits 150 African American and Caucasian individuals taking warfarin to determine if there is a differenc

Anettt [7]

Answer:

Z=11.0

Step-by-step explanation:

Let Caucasian individuals be the population 1 and African American be the population 2. So, we are given that

n=150

n1=75

mean1=xbar1=6.1.

standard deviation1=S.D1=σ1=1.1.

Variance1=V(x1)=σ1²=1.1²=1.21.

n2=75.

mean2=xbar2=4.3.

standard deviation2=S.D2=σ2=0.9.

Variance2=V(x2)=σ2²=0.9²=0.81.

The z-statistic is

$Z=\frac{xbar1-xbar2}{\sqrt{\frac{V(x1)}{n1}+ \frac{V(x2)}{n2} } }$

$Z=\frac{6.1-4.3}{\sqrt{\frac{1.21}{75}+ \frac{0.81}{75} } }$

$Z=\frac{1.8}{\sqrt{0.0161+ 0.0108 } }$

$Z=\frac{1.8}{\sqrt{0.0269 } }$

$Z=\frac{1.8}{0.164 } }$

Z=10.97

Z=11.0

So, the z value obtained while calculating the test statistic is approximately 11.0.

4 0

3 years ago

The temperature was −10 °F and dropped by 16 °F. Which statement represents the resulting temperature in degrees Fahrenheit? A −

scZoUnD [109]

A
−10 + 16 = 6
........................................................

6 0

3 years ago

Read 2 more answers

Solve the proportion. 2/x-3 = 5/x a. 5 b. 2 c.10 d.15

sergeinik [125]

Answer: a.5

Step-by-step explanation: You cross multiply and get 2x=5x-15. You then simplify this, getting -3x=-15. So the answer is 5.

8 0

3 years ago

A company sets up a food booth and a game at the country fair.The fee for the food both is $100 plus $5 per day. The fee for the

leva [86]

Answer:

$210

Step-by-step explanation:

There is a fixed fee and a variable fee for both the booths.

Food Booth:

Fixed Fee = $100

Variable Fee = $5 per day for 5 days = 5 * 5 = $25

Total Fee = 100 + 25 = $125

Game Booth:

Fixed Fee = $50

Variable Fee = $7 per day for 5 days = 7 * 5 = $35

Total Fee = $50 + $35 = $85

Total Fee for company = 125 + 85 = $210

7 0

3 years ago