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3 years ago

GIVING BRAINLIST ASAP

Mathematics

2 answers:

Monica [59]3 years ago

7 0

Answer:

8% markup

Step-by-step explanation:

65x=70.20

x = 70.20/65

x = 1.08

to get it as a percentage, you multiply 1.08*100=108%

this means that there is an 8% markup

Paraphin [41]3 years ago

4 0

Answer:

Step-by-step explanation:

70.20−65.00=5.20

(5.20/65.00)×100=8

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Michael paid $16.40 for 20.5 centimeters of wire. Find the unit price in dollars per centimeter. If necessary round your answer

Korvikt [17]

Answer:

$0.80

Step-by-step explanation:

$16.40 ÷ 20.5 = 0.80

You can check your work by doing :

20.5 cm of wire × $0.80 = $16.40

4 0

3 years ago

5/2 x X =1 what’s the answer

nata0808 [166]

Answer: X is 0.4

Explanation: I typed 5/2 x a bunch of random numbers and decimals on a calculator until I tried 0.4 and when I typed 5/2 x 0.4 on the calculator it said 5/2 x 0.4 = 1.

5 0

3 years ago

Read 2 more answers

We call the part or the remaining number in a percent problem the?

ollegr [7]

Amount, hope it helps (:

4 0

4 years ago

Last year, a person wrote 126 checks. Let the random variable x represent the number of checks he wrote in one day, and assume

Arisa [49]

Answer: The mean number of checks written per day $=0.3452$

Standard deviation $=0.5875$

Variance $=0.3452$

Step-by-step explanation:

Given : The total number of checks wrote by person in a year = 126

Assume that the year is not a leap year.

Then 1 year = 365 days

Let the random variable x represent the number of checks he wrote in one day.

Then , the mean number of checks wrote by person each days id=s given by :-

$\lambda=\dfrac{126}{365}\approx0.3452$

Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. $\sigma^2=\lambda=0.3452$

Standard deviation : $\sigma=\sqrt{0.3452}=0.5875372328\approx0.5875$

6 0

4 years ago

Someone help please?

miv72 [106K]

$d = 4n -2 \\d + 2 = 4n\\\frac{1}{4}d + \frac{2}{4} = n\\\\n = 0.25d + 0.5$

For a 3-penny nail
$n = 0.25d + 0.5\\ n = 0.25(3) + 0.5\\n = 0.75 +0.5\\\\n = 1.25$

For a 6-penny nail
$n = 0.25d + 0.5\\n = 0.25(6) + 0.5\\n = 1.5 + 0.5\\\\n = 2$

For a 10-penny nail
$n = 0.25d + 0.5\\n = 0.25(10) + 0.5\\n = 2.5 + 0.5\\\\n = 3$

Hope that helped :)

8 0

4 years ago