There are 30 students in the school chorale, and 12 of these students can stay after school today to help prepare the stage for the concert. What fraction of the students in the chorale can stay after school today? Write the fraction in simplest form.

Answers

Answer 1
Answer: well it would be 12/30 but it could divide by 2 which equals 6/15 which can be divided by 3 which equals 2/5 so the answer 2/5

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What is the value of 60 tens

Answers

The value of 60 tens is 600.

What is the place value?

The value of each digit in a number is known as place value. Every digit in a number has a distinct value depending on where it is located. The value of a digit depends on its position in the number, which might result in a number having two comparable digits with distinct values.

Given that, 60 tens.

Tens is the position two spaces to the left of the decimal point in a number written using the Arabic numeral system.

Here, 60×10

= 600

Therefore, the value of 60 tens is 600.

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It would  be 600.

You would multiply 60 times 10.

Hope it helped!:)

Plz help me on number 23

Answers

Well first of, 1/6 is not 15%, 1/6 is actually 16.6666666%. You want the fraction 3/20.
To add the first row we need to find a common denominator, which is 20. The new fractions become (5/20)+(12/20)+(3/20) which sums to 20/20 or 1.
the second row is 25+60+15=100%
the third row is 0.25+.60+.15=1
All of these answers add to a whole, in this case the total budget Evan decided on.  

Solve 5r2 – 12 = 68. {±4} {±5} {±3} {±6}

Answers

we are given

5r^2-12=68

Since, we have to solve for r

so, firstly we will isolate r terms

so, we will move 12 on right side

we can add both sides by 12

5r^2-12+12=68+12

5r^2=80

now, we can divide both sides by 5

(5r^2)/(5) =(80)/(5)

r^2=16

now, we can take sqrt both sides

and we get

r=4 , r=-4

so,

{±4}..........Answer

The running back for the Bulldogs football team carried the ball 3 times for a total loss of 6 3/4 yards. Find the average change in field position on each run. Enter the average change as a simplified mixed number.

Answers

Final answer:

The average change in field position per run is -2 1/4 yards. This is found by dividing the total yardage lost (6 3/4 yards) by the number of runs (3).

Explanation:

The subject of this problem is calculating the average. In this case, we are looking for the average yardage lost by the running back on each run. The running back for the Bulldogs football team has carried the ball 3 times for a total loss of 6 3/4 yards.

To find the average change in field position on each run, divide the total loss by the number of runs:

  1. Convert the mixed number 6 3/4 to an improper fraction. This gives us 27/4.
  2. Divide the numerator (27) by the denominator (4). This gives us -6.75.
  3. Divide -6.75 by 3 (the number of runs). This gives us -2.25.
  4. Convert -2.25 to a mixed number, which gives us -2 1/4.

Therefore, -2 1/4 yards is the average change in field position on each run.

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-6 3\4 / 3 = -2 1/4
Average of -2 1/4 yards per play

It takes 8 people to pull a 16 ton truck. How many people would it take take to pull a 60 ton truck? I got 30 people am I right? If not can you tell me the answer with work? (:

Answers

8 people pull a 16 ton truck
we can make that a proportion
8:16 
which can be reduced to 
1:2 

that means 1 person can pull 2 tons

to pull a 60 ton truck, you would have a proportion of
x: 60 = 1:2

cross multiply and you get

60 = 2x
x = 30

yes, you're right!

1. find the sum of the following numbers: -4, 7, -3, -12, 92. find the sum of the following numbers: -5, -8, -10, 23

Answers

1.

= ( - 3 - 4 - 12) + (7 + 9)

=  - 19 + 16

=  - 3

2.

= ( - 5 - 8 - 10) + 23

=  - 23 + 23

= 0