Will mark ! 98 ! at the middle school, the bell rings every 40 minutes to tell the students to change classes. across the street the clock above city hall chimes every 30 minutes. both the school bell and the clock ring at noon. when will both bells ring again at the same time? use prime factorization

Hello.

The answer is:

First find Lcm of 40 and 30 that is 120 (2*2*2*3*5)

the convert 120 by divinding  by 30 = 120/30=4

So that means 2   hours later  (2 hours after 12) so the answer is  2 pm

Have a nice day

squares, rhombus, rectangles

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.