All categories

2 years ago

A pen costs p cents. Write down a formula for the cost, C cents, for n pens.

Mathematics

1 answer:

Aleks [24]2 years ago

6 0

Answer:

n x p = c

Step-by-step explanation:

n is the amount of pens so we time it by the cost of 1 pen which is p and the final answer is c as the cost of all the pen.

You might be interested in

Simplify the expression 2p + 3/4p + 6 - p - 3 1/2

lozanna [386]

Answer:

The simplified expression is "7p/4 + 2 1/2" or "1.75p + 2.5".

Step-by-step explanation:

2p + 3/4p + 6 - p - 3 1/2
=> (2p - p + 3/4p) + (6 - 3.5)
=> 1.75p + 2.5

Hence, the simplified expression is "7p/4 + 2 1/2" or "1.75p + 2.5". Any of these would work.

Hoped this helped.

$BrainiacUser1357$

7 0

2 years ago

Find the x and y intercepts for the equation 2x + 7y = 42.

o-na [289]

Answer:

see explanation

Step-by-step explanation:

Given

2x + 7y = 42

To find the x- intercept let y = 0 in the equation and solve for x

2x + 7(0) = 42, that is

2x = 42 ( divide both sides by 2 )

x = 21 ← x- intercept or (21, 0 )

To find the y- intercept let x = 0 in the equation and solve for y

2(0) + 7y = 42 , that is

7y = 42 ( divide both sides by 7 )

y = 6 ← y- intercept or (0, 6 )

6 0

2 years ago

Item 5 is unpinned. Click to pin.

ira [324]

Answer:

10...

Step-by-step explanation:

4 0

2 years ago

According to USA Today, customers are not settling for automobiles straight off the production lines. As an example, those who

MrMuchimi

Answer: $(24980.25,\ 25419.75)$

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : $n= 179$ , which is a large sample , so we apply z-test .

Sample mean : $\overline{x}=20200+5000=25200$

Standard deviation : $\sigma= 1500$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Now, a confidence interval at the 95% level of confidence will be :-

$25200\pm(1.96)\dfrac{1500}{\sqrt{179}}\\\\\approx25200\pm219.75\\\\=(25200-219.75,\ 25200+219.75)\\\\=(24980.25,\ 25419.75)$

8 0

3 years ago

Jake has 2.3 miles squared of farmland behind the bakery. He planted tomatoes on 0.3 of his land. On how many square miles did h

viktelen [127]

To solve, multiply the total land by the portion he planted tomatoes on.

2.3mi²*0.3=0.69mi²

Answer=.69mi²

6 0

2 years ago

A pen costs p cents. Write down a formula for the cost, C cents, for n pens.​

A pen costs p cents. Write down a formula for the cost, C cents, for n pens.