Question

I need help on these two

Answer 1

Let's represent Jeff's weight as an equation and Darius' weight as an equation where
`m` equals the number of months they have been gaining/losing pounds.

Jeff's weight can be modeled by the equation below:

`J = 120 + 10m`

Darius' weight can be modeled by the equation below:

`D = 150 + 4m`

Since we are trying to find when the weights will be equal, let's set the equations equal to each other and solve:

`120 + 10m = 150 + 4m`

• Set equations equal to each other

`120 + 6m = 150`

• Subtract
  `4m` from both sides

`6m = 30`

• Subtract 120 from both sides of the equation

`m = 5`

• Divide both sides of the equation by 6

We have found m = 5. This means that the number of months it will take for their weights to be equal is 5.

Answer 2

-28x+4

Explanation: