Answered

Connect with knowledgeable individuals and get your questions answered on IDNLearn.com. Our experts provide accurate and detailed responses to help you navigate any topic or issue with confidence.

Roberta is 20 years older than Julian. In 4 years, Roberta's age will be twice Julian's age.
Roberta is twice as old as David. In 10 years, Roberta will be 8 less than three times David's present age.
Which description best represents this scenario?
o Ifr represents Roberta's age, and a represents David's age, then r = 2d and r + 10 = 3d - 8.
O Ifr represents Roberta's age, and d represents David's age, then r = 2d and r + 10 = 3(d-8).
O Ifr represents Roberta's age, and d represents David's age, then r = 2d and 7 - 10 = 3d – 8.
o Ifr represents Roberta's age, and d represents David's age, then r = 2d and r- 10 = 3(d - 8).

Sagot :

Mhanifaidn

Step-by-step explanation:

There are 2 questions in one.

1)

Roberta is 20 years older than Julian. In 4 years, Roberta's age will be twice Julian's age:

  • r = j + 20
  • r + 4 = 2j

---------------------------

2)

Roberta is twice as old as David. In 10 years, Roberta will be 8 less than three times David's present age:

  • r = 2d
  • r + 10 = 3d - 8

Correct choice is A

Your participation is crucial to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. Thank you for trusting IDNLearn.com. We’re dedicated to providing accurate answers, so visit us again for more solutions.