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Mademuasel [1]
3 years ago
12

f a university wants to maintain a 14:1 ratio between students and teachers, how many teachers would be needed to accommodate 89

6 students?
Mathematics
1 answer:
olga2289 [7]3 years ago
3 0
14:1
896:?

14x = 896
x represents number of teachers

Divide 14 off of both sides.

896/14 = 64

Final answer is 64.
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Find the sum of each set of numbers, as well as the size n of each set of numbers (n = number of numbers in the set). Use these
guapka [62]

We have to add numbers without a calculator.

1) 25, 35, 19, 31

We can group them by the last digit, so they are easy to add:

25 + 35 = 20 + 30 + 5 +5 = 50 + 10 = 60

19 + 31 = 10 + 30 + 9 +1 = 40 + 10 = 50

Then, 60 + 50 = 110

numbers in the set n = 4

Sum = 110

2) 101, 73, 49, 27, 24, 36

We can group them again by the last digit (adding 10, like the previous example).

We can substract the last digit from one number and add it to the other one. The result will be the same, but they will become easier to add.

101 + 49 = 100+50 = 150

73 + 27 = 70 + 30 = 100

24 + 36 = 20 + 40 = 60

150 + 100 + 60 = 250 + 60 = 310

numbers in the set n = 6

Sum = 310

3) 25, 25, 25, 30, 30, 30, 32, 32, 32

In this case we have 3 times the same numbers, so we can add the three different numbers and then multiply the total by 3.

We can use the properties of the multiplication to simplify the product (we will use the distributive property)

25 + 30 + 32 = 27 + 30 + 30 = 87

87 * 3 = 80*3 + 7*3 = 240 + 21 = 261

numbers in the set n = 9

Sum = 261

8 0
1 year ago
Suppose that two balanced, six sided dice are tossed repeatedly and the sum of the two uppermost faces is determined on each tos
Simora [160]

Answer:

\frac{(2/36)}{(1-(28/36))} = 1/4

Step-by-step explanation:

6 0
3 years ago
15 minutes into decimal
prohojiy [21]

the answer is 0.25

I got this out of mt textbook not to long ago


hope this helped

3 0
3 years ago
Can someone tell me what i did wrong cuz it’s wrong please will name brainliest
valkas [14]
Switch 2 units to 5 units.

Explanation:

If Figure G was a reflection over the x-axis (which it is), then the bottom right angle would be at 4 on the y axis. In order for it to get to -1, you would need to move Figure G down 5 units. I hope this helps!
4 0
2 years ago
Read 2 more answers
at Mountain Park Middle School there are 250 7th grade students currently 32% of those students are in advanced math​
makkiz [27]

Answer:

95

students in the seventh grade have taken swimming lessons.

Explanation:

We calculate  

38

%

of  

250

using the following formula:

x

=

250

×

38

100

x

=

25

0

×

38

10

0

       

(cancel by 10)

x

=

5

25

×

38

2

10

       

(cancel by 5)

x

=

5

×

19

38

1

2

           

(cancel by 2)

x

=

5

×

19

x

=

95

Step-by-step explanation:

7 0
3 years ago
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