Me-
lisa is 4 centimeters taller than her friend ian. ian is 8 centimeters taller than jim. every month, their heights increase by 2 centimeters. in 4 months, the sum of ian's and jim's heights will be 180 centimeters more than lisa's height. how tall is ian now? let h be ian's height today in centimeters.

Ian's height today is 184 cm

Step-by-step explanation:

Let

x ----> the height of Lisa

h ----> the height of Ian

z ----> the height of Jim

we know that

-----> equation A

-----> ----> equation B

----> equation C

substitute equation A and equation B in equation C and solve for h

Find the value of x

Find the value of z

therefore

Ian's height today is 184 cm

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24