(08.06)
Jamie is 5 years older than Ella. Jamie's age is 11 years less than three times Ella's age. The system below models the relationship between Jamie's age (j) and Ella's age (e):

j = e + 5
j = 3e − 11

Which of the following methods is correct to find Jamie's and Ella's age?

Solve j + 5 = 3j − 11 to find the value of j.
Write the points where the graphs of the equations intersect the x-axis.
Write the points where the graphs of the equations intersect the y-axis.
Solve e + 5 = 3e − 11 to find the value of e.

Respuesta :

Answer:

Solve e + 5 = 3e − 11 to find the value of e

Step-by-step explanation:

Let

j------> Jamie's age

e----> Ella's age

we know that

[tex]j=e+5[/tex] -----> equation A

[tex]j=3e-11[/tex] -----> equation B

equate equation A and equation B and solve for e

[tex]e+5=3e-11[/tex]

[tex]3e-e=5+11[/tex]

[tex]2e=16[/tex]

[tex]e=8[/tex]

Find the value of j

[tex]j=8+5=13[/tex]

Jamie's age is 13 years old

Ella's age is 8 years old

Answer:

D

Step-by-step explanation:

took the test and got it right

Q&A Education