Question

Twenty years ago, Mike was four times as old as John. Four years from now mike will be twice as old as John let x represent Mike's age and y represent Johns age. Helppp! I need an equation in either standard or slope-intercept form! WILL GIVE BRAINLIEST!

Answer 1

Answer:

• Mike is 68 and John is 32

Step-by-step explanation:

Set equations as follows

20 years ago

Mike was four times as old as John:

• x - 20 = 4(y - 20)

Four years from now

Mike will be twice as old as John:

• x + 4 = 2(y + 4)

Simplify each equation

• x - 20 = 4y - 80 ⇒ x = 4y - 60
• x + 4 = 2y + 8    ⇒ x = 2y + 4

Solve for y by substitution

• 4y - 60 = 2y + 4
• 4y - 2y = 60 + 4
• 2y = 64
• y = 32

Find the value of x

• x = 2*32 + 4 ⇒ x = 68

I hope you can convert the above equations into required format. Let me know if not.