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Oksi-84 [34.3K]
1 year ago
15

Student : teacher ratio at a school is 15: 1.

Mathematics
1 answer:
Juli2301 [7.4K]1 year ago
7 0

Answer:

300 students and 150 : 11

Step-by-step explanation:

(i)

sum the parts of the ratio , 15 + 1 = 16 parts

divide the total students/staff by 16 to find the value of one part of the ratio.

320 ÷ 16 = 20 , then

number of students = 15 × 20 = 300

(ii)

number of staff = 320 - 300 = 20

if 2 more teachers join the school then there is a total of 22 staff

student : teacher = 300 : 22 = 150 : 11

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poizon [28]
Numbers are arranged by their place values. Place values give a quantity of value to a certain digit in a number. Given a number, the rightmost number is the ones place, followed by the tens place, hundreds, thousands, ten thousands, hundred thousands, millions, ten millions, hundred millions, as so on and so forth. The place value of a certain digit is 10 times bigger than its adjacent digit to the right.

So for this problem, all you have to do is multiply the number of units of each place value, then multiple them all by 10.

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Answer:

95

Step-by-step explanation:

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hope this helped :)

6 0
2 years ago
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Zielflug [23.3K]

Answer:

The only positive integers would be anything less than 3. So 1 or 2 would work

Step-by-step explanation:

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Alla [95]
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