All categories

3 years ago

Abby can buy an 8 pound bag of dog food for 7.40 or a 4 pound bag of the same dog food for 5.38 which is better buy

2 answers:

7 0

The 8 pound bag is a better deal8 Pound Bag8= 7.401= 0.92593 cents per pound
4 pound bag4= 5.381= 1.3451 dollar and 35 cents per pound
The 8 pound bag is a better deal by 42 centers per pound

mars1129 [50]3 years ago

6 0

The 8 pound bag is a better deal

8 Pound Bag

8= 7.40

1= 0.925

93 cents per pound

4 pound bag

4= 5.38

1= 1.345

1 dollar and 35 cents per pound

The 8 pound bag is a better deal by 42 centers per pound

You might be interested in

What's 3,897.003 in expanded form.

Art [367]

3,897.003 in expanded form is:

3,000 + 800 + 90 + 7 + 0.003

3 0

3 years ago

Suppose that the current equilibrium price of silver is $34 per ounce. If silver is produced under conditions of perfect competi

Bond [772]

Answer:

b. is $34 per ounce

Step-by-step explanation:

If the production cost were less, a competitor would drive the price down. If the production cost were more, the supplier would go out of business.

Since we're at equilibrium, the production cost must be equal to $34 per ounce.

6 0

3 years ago

How could you informally prove to your friend that you are a member of the baseball team?

solniwko [45]

Answer:

D.) You can show your name printed on the team roster.Step-by-step explanation:

3 0

2 years ago

A machine, when working properly, produces 5% or less defective items. Whenever the machine produces significantly greater than

vovikov84 [41]

Answer:

The pvalue of the test is 0.0007 < 0.01, which means that we reject the null hypothesis and accept the alternate hypothesis that the percentage of defective items produced by this machine is greater than 5%.

Step-by-step explanation:

A machine, when working properly, produces 5% or less defective items.

This means that the null hypothesis is:

$H_0: p \leq 0.05$

Test if the percentage of defective items produced by this machine is greater than 5%.

This means that the alternate hypothesis is:

$H_a: p > 0.05$

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

0.05 is tested at the null hypothesis:

This means that $\mu = 0.05, \sigma = \sqrt{0.05*0.95}$

A random sample of 300 items taken from the production line contained 27 defective items.

This means that $n = 300, X = \frac{27}{300} = 0.09$

Value of the test statistic:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{0.09 - 0.05}{\frac{\sqrt{0.05*0.95}}{\sqrt{300}}}$

$z = 3.18$

Pvalue of the test:

Testing if the mean is greater than a value, which means that the pvalue of the test is 1 subtracted by the pvalue of Z = 3.18, which is the probability of a finding a sample proportion of 0.09 or higher.

Looking at the Z-table, Z = 3.18 has a pvalue of 0.9993

1 - 0.9993 = 0.0007

5 0

3 years ago

Simplify the expression: - 4t+ - 7t+3–10t

Gekata [30.6K]

Answer:t+3

Step-by-step explanation:

4t+7t+3-10t

11t+3-10t

t+3

8 0

3 years ago