All categories

3 years ago

At Davis you can buy 12 pounds of M&M's for $12.24 or 8 pounds for $8.24 at Smith's. Which is the better buy

Mathematics

1 answer:

Law Incorporation [45]3 years ago

4 0

Answer:

12 pounds

Explanation:

If you were to divide 12.24 from 12 you would get 1.02, which would be the cost of each pound.

Meanwhile, if you were to divide 8.24 from 8 you would get 1.03, which would be the cost of each pound.

So although its only a 1 cent difference and you are technically spending more by buying the 12 pounds, if it were to buy 8 pounds from the cost of each pound for the 12 pounds, you'd only be spending $8.16 vs $8.24.

Because you would multiply 1.02, which is the cost of each pound for 12, by 8 and you would get 8.16.

You might be interested in

(x3 + 3x² + x + 6) + (x - 1)

DaniilM [7]

Answer:

x^3 + 3x^2 + 2x + 5

Step-by-step explanation:

combine like-terms

3 0

3 years ago

Can you please answer this question for me please.

GaryK [48]

9514 1404 393

Answer:

(a) 3/2

Step-by-step explanation:

The scale factor is the ratio of corresponding side lengths.

sf = 63/42 = (21×3)/(21×2) = 3/2

8 0

3 years ago

Please help with these questions there due today.

larisa86 [58]

Q5=2 q6=5 q7=12 q8=2

4 0

3 years ago

you can finish 1 fifth of your homework in 2 minutes . how long will it take you to finish all of it ?

Furkat [3]

10 minutes it will take you 10 minutes 10 minutes it will take you 10 minutes

7 0

4 years ago

You want to estimate the proportion of kids between the ages of 12 and 15 who have tried marijuana. You take a random sample of

kirill115 [55]

<h2>Answer with explanation:</h2>

Let p represents the population proportion.

By considering the given information, we have

$H_0: p=0.29\\\\H_a: p\neq0.29$

∵ the alternative hypothesis is two tailed , so the test is two-tailed test.

Given : For sample size :n= 130, $\hat{p}=0.23$

Test statistic: $z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

$z=\dfrac{0.23-0.29}{\sqrt{\dfrac{0.29(1-0.29)}{130}}}\\\\=-1.50762993902\approx-1.51$

P-value (two -tailed test)= $2P(z>|-1.51|)=0.1310434\approx 0.131$

Since , the p-value (0.131) is greater than the significance level (0.03), so we accept the null hypothesis.

Thus , we conclude that we have sufficient evidence to support the null hypothesis that the true population proportion of Maryland students who have smoked marijuana is 29% .

5 0

3 years ago