Question

HELP ILL GIVE BRAINIEST THIS MY LAST QUESTION!

Answer 1

Answer:

Honestly, Mark above person answer as brainliest..okay

Answer 2

Answer:

• Jim = 6 hours
• Regina = 12 hours
• Together at same rate = 3 hours

Step-by-step explanation:

• Let Jim's speed  is J and Regina's speed is R and the work is W

We have:

• (J + R)*4 = W
• J = 2R

Substitute J with 2R:

• (2R + R)*4 = W
• 12R = W

Regina needs 12 hours to complete work

and

Substitute R with J/2:

• (J + J/2)*4 = W
• 6J = W

Jim needs 6 hours to complete same work

If Regina works as quickly as Jim:

• J + R = 2J

Then

Jim can complete 1/6 of work in one hour, they both can complete twice work:

• 1/6*2 = 1/3

Time to complete work:

• 1: 1/3 = 3 hours