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3 years ago

Which is not a like term in the expression 7x +3 - 4 x-x

Mathematics

1 answer:

777dan777 [17]3 years ago

7 0

Answer:

3 is not a like term because it isn't an x term, it doesn't have an x variable while the other terms do.

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Jason paid $24 for a 30 pound bag of dog food. What was the cost per pound of the dog food?

katen-ka-za [31]

Answer:

$0.80 per pound

Step-by-step explanation:

I hope this helps <3

5 0

3 years ago

Mathmerica Bank offers 2.1% interest compounded yearly

Scilla [17]

Answer:

Total = 2,500 (1.021)^t

Step-by-step explanation:

There is no question but the formula for compound interest is

Total = amount (1 + rate)^time

Total = 2,500 (1.021)^t

6 0

3 years ago

Two numbers with a product of 1, such as 3/4 and 4/3 are called reciprocals

evablogger [386]

Answer:

thanks for the points i mean really. anways hope someone else can help

8 0

3 years ago

A dealer bought 3 gross buttons at $.38 a dozen. He sold the buttons at 5 cents each. How much was his profit per gross?(12 doze

777dan777 [17]

Answer:

$2.64

Step-by-step explanation:

Selling them at 5 cents each ($0.05), he could sell 1 dozen buttons for

12 * $0.05 = $0.60

As he bought them at $0.38 per dozen, the profit per dozen would be

$0.60 - $0.38 = $0.22

As 12 dozen is 1 gross, the profit per gross would be

12 * $0.22 = $2.64

7 0

3 years ago

Read 2 more answers

In a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Interne

Dvinal [7]

Answer:

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

Step-by-step explanation:

Given that in a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week. The mean of the sample observations was 12.9 hours.

$H_0: \bar x =12.7\\H_a: \bar x >12,7$

(Right tailed test at 5% level)

Mean difference = 0.2

Std error = $\frac{6}{\sqrt{1000} } \\=0.1897$

Z statistic = 1.0540

p value = 0.145941

since p >alpha we do not reject H0.

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

5 0

3 years ago