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2 years ago

Please answer! will give brainliest

Mathematics

2 answers:

kirza4 [7]2 years ago

6 0

Answer:

88.17

Step-by-step explanation:

Sloan [31]2 years ago

5 0

Answer:

88.375

Step-by-step explanation:

To find the mean you need to add all of the numbers up so,

100+78+93+84+91+100+82+79= 707

Than for how many numbers you put into the equation, so for this one (8) you will divide by the answer so,

707/8 = 88.375

which would be the mean.

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A circle has a diameter of 42 mm. What is the circumference of this circle? (use 22/7 for pi; show your work in numbers)

stellarik [79]

Answer:

132

Step-by-step explanation:

Find Radius (r)

42/2 = 21

Plug 21 into Circumference Equation

2πr (In this case, π is 22/7)

Simplify

42 (22/7)

132

8 0

3 years ago

Complete the sentence. 7 is 35% of _________.

Sonbull [250]

Okay, pretend the number equals X,
so x is 35%, and that would equal 7, so then
x is still 35/100 = 7
x = 7 which is 100/35
x = 700/35
x = 20
then you get the number = 20
I hope this was helpful, and good luck! :P

7 0

2 years ago

Read 2 more answers

Can u guys please help a poor soul 1/root 5 - root 3

Stolb23 [73]

Answer:

1/√5+√3= 1/√5+√3×√5-√3/√5-√3 = √5-√3/(√5)^2-(√3)^2 {(a+b)(a-b)= (a)^2-(b)^2} =√5-√3/5-3 =√5-√3/2 ans... Do you satisfied to my given answer

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

What do I do steps? please help

skad [1K]

Area = Length x Width

so, 88 = (something) x 8
Can you work out the something using mental math?

8 0

2 years ago

A coin contains 1.25 grams of nickel and 3.75 grams of copper, for a total weight of 5 grams. What percentage of the metal in th

otez555 [7]

So,

To find the percentage that the copper comprises, just divide the amount of copper by the total amount of metal in the coin. In this case, we will change the denominator so that it is 100, which can easily be converted into a percentage, which is really just a fraction out of 100.

$\frac{3.75}{5} = \frac{7.50}{10} = \frac{75}{100}$

75%

75% of the metal in the coin is copper.

7 0

2 years ago