During the past school year, there were 640 students and 52 teachers. what is the ratio of students to each teacher rounded to the nearest tenth? a. 12.3: 1 b. 1: 12.3 c.160: 13 d. 13: 160

12.3:1

Step-by-step explanation:

Hello, think I can help you with this

to find the ratio of students to each teacher just divide the number of students  by the number of teachers

Step 1

put the values in the equation

usually written

12.3:1

which means that for every 12.3 students there is 1 teacher

I hope it helps, have  a great day.

answer: integers are just whole numbers: positive, negative, and zero.

i = {-∞, -2, -1, 0, 1, 2, 3, ∞}

let x = 1st integer

let y = 2nd integer

x = 3y + 17   {equation 1}

xy = -24         {equation 2}

substitute 3y+17 in place of x n equation 2

and solve for y.

(3y+17)y = -24

3y2 + 17y = -24

3y2 + 17y + 24 = 0

from quadratic equation:

y = [-17±√(172-4(3)(24))]/(2(3))

y = (-17 ±√1)/6

y = (-17+1)/6   or     y = (-17-1)/6

y = -16/6           or     y = -18/6

y = -2 2/3         or   y = -3

since we are dealing with

y = -3

x = 3y+17 = -9+17 = 8

the integers are -3, 8

step-by-step explanation:

a ≈ 172.05

step-by-step explanation:

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