Person 1 can do a certain job in 21 minutes, and person 2 can do the same job in 28 minuets. when completing the job together, which expression would be used to represent the amount of work done by person 1. 21,1/21,x/21,21x

1/21.

Step-by-step explanation:

To solve the problem 'How long would they take to do the job working together?'  you would work in fractions of the job done / minute:

1/21 + 1/28 = 1/x.

So for person 1 the expression is 1/21.

answer: slight chance that it will happen

step-by-step explanation:

javeir earned 56 dollors more than kyle so kyle and javier had 14w but javier made 56 dollors more so 14w plus 56 equals 70w so kyle has 14w

step-by-step explanation: hope i plz give me brainliest with the points so this is not constant cause it says last week so its clearly not every week