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Angelina_Jolie [31]
3 years ago
15

A school district needs 3 teachers for every 70 students. They expect to have 14,700 in the district next year. At this time the

y have 612 teachers. How many more teachers are needed.
Mathematics
1 answer:
VLD [36.1K]3 years ago
3 0

Answer:

18

Step-by-step explanation:

We can use a proportion to find out the number of teachers that are needed.

3/70 = x/14,700

70x = 3 * 14,700

70x = 44,100

x = 630

630 teachers are needed altogether. Since there are already 612 teachers, the number of more teachers who are needed is the difference between 630 and 612.

630 - 612 = 18

Answer: 18

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A printer prints 28 photos in 8 minutes. how many photos does it take to print 35 more photos
svetlana [45]
First, we see how many photos can be printed in a minute. We do know that it can print 28 photos in 8 minutes.

To find how many photos it can print in 1 minute, we divide 28 by 8.

28÷8=3.5 

The printer can print 3.5 photos per minute. 

To see how many minutes it will take to print 35 photos, we divide 35 by 3.5.

35÷3.5=10.

It will take 10 minutes to print 35 photos.

Have a nice day! :)

6 0
2 years ago
You have 7 consecutive numbers, with the smallest number n.
Romashka [77]

Answer:

a) 7 numbers in term of n = n+1, n+2, n+3, n+4, n+5, n+6 and n+7

b) n+1+n+2+n+3+n+4+n+5+n+6+ n+7

= 7n+28

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

3 0
3 years ago
For 2 sweaters for that price what percent discount is that?
Harrizon [31]

Answer: 75% off


Step-by-step explanation:

Your first sweater is the full 100% of the cost. The second it only 50 percent. If you add these to find out how many percent you will pay which is 150 for both. If you were to divide by 2 you get 75 percent off each sweater. The first sweater is $48 the second you multiply by .5 (as its 50 percent off ) and the cost is $24 dollars. 48 plus 24 is 72 then that divided by 2 is 36. Now 36$ is the price per sweater.  36/48 or  3/4 (which is 75%)

6 0
3 years ago
Three times the sum of a number and four is equal to five times the number, decreased by two
vodka [1.7K]
Answer is x=2 bacause u just jave to listen. this is the equation . 3x+4=5x-2. solve
4 0
3 years ago
10x - 3(4x + 1)
seraphim [82]

Answer:

See below for answers and explanations

Step-by-step explanation:

<u>Part A</u>

10x - 12x - 3 does not equal -5x. Looks like what she did wrong was treating -3 as -3x and got her incorrect result that way

<u>Part B</u>

10x - 12x - 3 = (10-12)x - 3 = -2x - 3

3 0
2 years ago
Read 2 more answers
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