Rounded to the nearest hundredth 0.96
2 answers:
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<u>Question</u>:
The ratio of students to teachers at a school is 19 : 1. How many students are there in each total number of people?
A: 100 people
b. 280 people
c.440 people
d.760 people
<u>Answer</u>:
A )95 students and 5 teachers
B)266 students and 14 teachers
C)418 students and 22 teachers
D)722 students and 38 teachers
<u>Step-by-step explanation:</u>
<u><em>A: 100 people</em></u>
Ratio = 19 : 1
The sum of the ratio is 19 + 1 = 20
Scale factor =
scale factor = 5
The number students is = 95
The number of teachers is = 5
<em><u>b. 280 people </u></em>
Ratio = 19 : 1
The sum of the ratio is 19 + 1 = 20
Scale factor =
scale factor = 14
The number students is = 266
The number of teachers is = 14
<em><u>c.440 people</u></em>
Ratio = 19 : 1
The sum of the ratio is 19 + 1 = 20
Scale factor =
scale factor = 22
The number students is = 418
The number of teachers is = 22
<em><u>d.760 people</u></em>
Ratio = 19 : 1
The sum of the ratio is 19 + 1 = 20
Scale factor =
scale factor = 38
The number students is = 722
The number of teachers is = 38
Answer:
The number of tablets 200
the number of laptops 40
and, the number of servers 20
Step-by-step explanation:
Let the number of tablets be 'x'
the number of laptops be 'y'
and, the number of servers be 'z'
According to the given question
Total budget = $280,000
Tablets cost = $500 each
laptops cost = $2000 each
servers cost = $5000 each
Thus,
500x + 2000y + 5000z = 280,000 ..............(1)
also,
x = 5y ................(2)
and,
y = 2z
or
z = ............(3)
substituting y from 2 and 3 in equation 1, we get
(500 × 5y) + (2000 × y) + (5000 ×
) = 280,000
or
2500y + 2000y + 2500y = 280,000
or
7000y = 280,000
or
y = 40
substituting y in equation 2, we get
x = 5 × 40 = 200
substituting y in equation 3 we get
z =
or
z = 20
hence,
the number of tablets 200
the number of laptops 40
and, the number of servers 20