MATHEMATICS MIDDLE SCHOOL

3 times the square root of 28??
3√28

Answers

Answer 1
Answer:


First of all, the square root of 28 is 5.3. That is because 5.3*5.3=28.09 but mainly just 28. So now that we know what the square root of 28 is now we can multiply it by 3.

5.3*3= 15.9

Your final answer is 15.9
Answer 2
Answer: here is your answer 15.8745079

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Two ratios that are equivalent to 6:10

Answers

Answer:

  1. C. 3 : 5
  2. D. 24 : 40

Step-by-step explanation:

For C:

  1. 6 ÷ 2 = 3
  2. 10 ÷ 2 = 5
  3. Put them together: 3 : 5

For D:

  1. 6 × 4 = 24
  2. 10 × 4 = 40
  3. Put them together: 24 : 40

I hope this helps!
3:5 and 24:40 hope this helps!

A rug covers 1/4 of the floor.The area of the rug is 10ft what is the area of the floor?

Answers

the area of the floor is 40 square ft
The area of the rug is 10ft 

let the floor area x

so according to the question,  x/4 = 10 so the area of the floor is x=40ft (ans)

Of 140 seventh-grade students, 15% earn the Presidential Physical Fitness Award. How many students earn the award?

Answers

We have an equation: ?/140= 15/100

Cross multiply:
100*?= 15*140
⇒ ?= 15*140/100= 21

21 students earn the Presidential Physical Fitness Award~
15% is equivalent to the fraction 3/20 so you must divide 140 by 20 then multiply by 3 to get the final answer of 21 students. Hope this helps :D

Factors of 56 that add up to 30

Answers

factors of 56 that add up to 30
56 = 2*28
so the factors are 2 & 28
and 2 + 28 = 30
Factors\ of\ 56:\ 1,2,4,7,8,14,28,56\n \n2+28=30\n \n1+7+8+14=30

What number is between 0.01 and 0.1??

Answers


There are an infinite number of those.
A few of them are ...

0.01000000000000001
0.02
0.03
0.04
0.045
0.05
0.055
0.06
0.07
0.08
0.081
0.082
0.089
0.09
0.091
0.09100001
0.0910000100001
0.09100002
0.098
0.099
0.0999
0.09999
0.099991
0.099992
0.0999999999999999999999999
.
.
etc.

If you just want the number that's exactly in the middle
between  0.01  and  0.1 , then that's called the "average"
of  0.01  and  0.1 .

To find the average of any list of items ...
-- add them all up
-- divide their sum by the number of items on the list.

Your list has only two items on it.

-- Add them up . . . . . (0.01 + 0.1) =  0.11
 
-- Divide the sum by
   the number of items on the list:  0.11 / 2  =  0.055 .
any number like 0.01 0.02 0.03 and so on to 0.09

Anita works for a dog-walking service. She earns a one-time fee of $10 plus an additional $2 for each dog she walks. If Anita wants to earn at least $40, what is the minimum number of dogs she must walk?

Answers

40=10+2x where x is the number of dogs.
30=2x
x=15
Therefore she must walk 15 dogs

Hope this helps :)
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