Caleb practices piano 20 minutes per day, and he practices guitar 30 minutes per day. Which expression represents the number of

Question

4 years ago

15

minutes Caleb spends practicing instruments after d days? Select each correct answer.

2 answers:

pav-90 [236] · Answer 1 · 2022-01-22T08:21:21+03:00

5 0

$20d + 30d = 50d$

Hope this helps. - M

Soloha48 [4] · Answer 2 · 2022-01-22T09:36:34+03:00

Answer:

20d + 30d = 50d

Step-by-step explanation:

We know the variable d represents the number of days.

He practices piano 20 minutes per day; this gives us the expression 20d.

He practices guitar 30 minutes per day; this gives us the expression 30d.

Together, this gives us

20d + 30d; combining like terms gives us

50d.