Sonyalee77
  • Sonyalee77
The ratio of Brenda’s age to Jason’s age is 4:5. In eight years the ratio will be 6:7. How old is Brenda now?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
tkhunny
  • tkhunny
Step #1 - Name things. B is Brenda's Age Now J is Jason's Age Now Okay, now we can talk about them. If their current ages have a ratio of 4:5, can you express that in mathematical notation? Hint: Think Ratio = Fraction.
kropot72
  • kropot72
J=5/4 * B = 1.25B .............(1) \[\frac{B+8}{J+8}=\frac{6}{7}\ ............(2)\] Cross multiplying (2) gives 7B + 56 = 6J + 48 ..................(3) Plugging the value for J from (1) into (3) we get 7B + 56 = 7.5B + 48 ..............(4) Now you just need to solve (4) to find B.
kropot72
  • kropot72
@Sonyalee77 Do you understand?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

Sonyalee77
  • Sonyalee77
no
Sonyalee77
  • Sonyalee77
@campbell_st
kropot72
  • kropot72
7B + 56 = 7.5B + 48 ..............(4) Now you just need to solve (4) to find B. First subtract 7B from both sides to get 7.5B - 7B + 48 = 56 which simplifies to 0.5B + 48 = 56 Now subtract 48 from both sides to get 0.5B = 8 ............(5) Now if you divide both sides of equation (5) by 0.5 you will get B, Brenda's present age.
kropot72
  • kropot72
@Sonyalee77 Are you there?
Sonyalee77
  • Sonyalee77
is 16 right?
kropot72
  • kropot72
Yes, Brenda's age now is 16 years.

Looking for something else?

Not the answer you are looking for? Search for more explanations.