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3 years ago

tabitha has 2 1/6 pounds of flour. she will use 2/3 pound of flour to make pancakes.how many pounds of flour will be left?

2 answers:

6 0

1 3/6 pounds would be left.

2/3 pounds = 4/6 pounds (multiply by 2/2, or 1)

[Pounds of flour she has - pounds used to make pancakes = pounds of flour left :

2 1/6 pounds - 4/6 pounds = pounds of flour left]

= 1 3/6 pounds

♧

Reptile [31]3 years ago

4 0

There will be 1 1/2 pounds of flour left

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How many students must be randomly selected to estimate the mean weekly earnings of students at one college? We want 95% confide

kari74 [83]

Answer:

The sample of students required to estimate the mean weekly earnings of students at one college is of size, 3458.

Step-by-step explanation:

The (1 - α)% confidence interval for population mean (μ) is:

$CI=\bar x\pm z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}$

The margin of error of a (1 - α)% confidence interval for population mean (μ) is:

$MOE=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}$

The information provided is:

σ = $60

MOE = $2

The critical value of z for 95% confidence level is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

Compute the sample size as follows:

$MOE=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}$

$n=[\frac{z_{\alpha/2}\times \sigma }{MOE}]^{2}$

$=[\frac{1.96\times 60}{2}]^{2}$

$=3457.44\\\approx 3458$

Thus, the sample of students required to estimate the mean weekly earnings of students at one college is of size, 3458.

8 0

3 years ago

The zoo charges $4 admission fee

Andrews [41]

Answer:

Intial Value; $4 (charged)

Rate of change: $2 every exhibit visited

Admission: $4

1 exhibit visited: $6

2 exhibits visited: $8

3 exhibits visited: $10

4 exhibits visited: $12

5 exhibits visited: $14

6 exhibits visited: $16

7 exhibits visited: $18

8 exhibits visited: $20

etc.

Step-by-step explanation:

4+2x = C

C= Cost

X = amount of exhibits visited

To find the total cost.

5 0

2 years ago

Number one on wednesdsay 90>-9(w+3)

gtnhenbr [62]

-13<w because 9*w and 9*3 = 90>-9w-27 then add 27 and get 117>-9w then divide and get -13<w

4 0

3 years ago

Laurie buys four bags of candy with 10 pieces of candy in each bag. Her father then gives her 5 more pieces of candy. Laurie wan

Alborosie

Your Question:
Laurie buys four bags of candy with 10 pieces of candy in each bag. Her father then gives her 5 more pieces of candy. Laurie wants to give as much of her candy as she can to each of her six friends, and she wants to make sure they each get an equal number of pieces. How many pieces will be left over, if any, after Laurie gives her friends the candy?
My Answer:
If Laurie has four bags with ten pieces in each bag, and if her father gives her five more pieces, she would have forty-five pieces and if she has six friends and wants to share it equally with six friends. Each friend would get 7 pieces.
My Work:
45 ÷ 6 = 7.5
Hope I helped
♥ James.

7 0

3 years ago

Read 2 more answers

How to solve -7(-3r+2)=3r-6

Ymorist [56]

Step-by-step explanation:

-7(-3r+2)=3r-6

Distribute the - 7

21r-14=3r-6

Add 14

21r=3r+8

Subtract 3r

18r=8

Divide 18r by 8

2.25 should be the answer to r.

8 0

3 years ago