All categories

3 years ago

The profit from the lemonade sale can be modeled by P = c - 25. How many cups need to be sold make a profit of $40?

Mathematics

1 answer:

frozen [14]3 years ago

7 0

you would need to sell 65 cups to make $40 because 40+25=65

You might be interested in

Please help em!!! I need an answer fast

DerKrebs [107]

You divide the area and the base

3 0

3 years ago

(a) Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the prop

zalisa [80]

Answer:

(a) The sample sizes are 6787.

(b) The sample sizes are 6666.

Step-by-step explanation:

(a)

The information provided is:

Confidence level = 98%

MOE = 0.02

n₁ = n₂ = n

$\hat p_{1} = \hat p_{2} = \hat p = 0.50\ (\text{Assume})$

Compute the sample sizes as follows:

$MOE=z_{\alpha/2}\times\sqrt{\frac{2\times\hat p(1-\hat p)}{n}$

$n=\frac{2\times\hat p(1-\hat p)\times (z_{\alpha/2})^{2}}{MOE^{2}}$

$=\frac{2\times0.50(1-0.50)\times (2.33)^{2}}{0.02^{2}}\\\\=6786.125\\\\\approx 6787$

Thus, the sample sizes are 6787.

(b)

Now it is provided that:

$\hat p_{1}=0.45\\\hat p_{2}=0.58$

Compute the sample size as follows:

$MOE=z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})}{n}$

$n=\frac{(z_{\alpha/2})^{2}\times [\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})]}{MOE^{2}}$

$=\frac{2.33^{2}\times [0.45(1-0.45)+0.58(1-0.58)]}{0.02^{2}}\\\\=6665.331975\\\\\approx 6666$

Thus, the sample sizes are 6666.

7 0

3 years ago

The equation c = 6.5h represents the cost, c, of renting a bicycle for h hours. The table below can be used to show the same inf

marta [7]

The answer is B. $26

4 0

3 years ago

Read 2 more answers

Simplify 3x-(1/4*2)+3/5-x

Alex787 [66]

The answer is: $2x + \frac{1}{10}$

3 0

3 years ago

Read 2 more answers

Which is not a true proportion 4/8 = 1/2 7/21=1/3 10/25=2/5 12/14=4/7

valentinak56 [21]

Answer: D

Step-by-step explanation:

12 and 14 share the factor 2 so the furthest it can be simplified to is 6/7. this is not equal to 4/7

4 0

3 years ago