3gointer77 3gointer77

01-03-2017
Mathematics

contestada

Person 1 can do a certain job in twenty-one minutes, and person 2 can do the same job in twenty-eight minutes. When completing the job together, which expression would be used to represent the amount of work done by person 1?

Respuesta :

Аноним Аноним

07-03-2017

I hope this helps you

1/21+1/28=1/t

4/84+3/84=1/t

5/84=1/t

t=84/5

84/5 1

21 ?

?.84/5=1.21

?=5/4

Answer Link

Otras preguntas

*NEED AN ANSWER ASAP* My book didn’t explain how to solve these ones.

Draw all four products when the following compound undergoes dehydrohalogenation and rank them in terms of stability. Which product do you expect to be the majo

simplify the following without using calculator √50 + √98

What are the effect caused due to conflict ?

how is the reality of the murder exposed in the story

Are you able to handle rude people/trollers in the community? (Explain)

Write (2X -5)^2 as a tri nominal

my house has only one post Who am I

A bakery owner asked 150 customers to taste a new type of cookie and found that 60 people liked its taste. Which of these is an example of descriptive statistic

What health risk associated with high blood pressure