MATHEMATICS MIDDLE SCHOOL

Which expressions are equivalent to 4b ?Choose all answers that apply:
a. b+2 (b+2b)
b. 3b+b
c. 2(2b)

Answers

Answer 1

Answer:

Answer:

They are b and c.

Step-by-step explanation:

Let's simplify each expression:

a. b+2 (b+2b)

= b + 2b + 4b = 7b.

b. 3b + b = 4b.

c. 2(2b) = 2 * 2b = 4b.

Answer 2

Answer:

Answer:

hello :

expressions are equivalent to 4b :

b ) 3b +b = 4b

c) 2(2b) = 4b

but : a) is not equivalent to 4b

because : b+2 (b+2b) = b + 2b +4b = 7b

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Answers

Answer: (I think its correct)

1: 8 hours and 30 minutes

2: 8 hours

3: 8 hours and 50 minutes

4: 8 hours and 45 minutes

5: 7 hours and 48 minutes

6: 11 hours 13 minutes

7: 11 hours 31 minute

Step-by-step explanation: (Im bad at explaining it)

So I got this by using counting the hours in between the times and taking out the minutes in them,then subtracting the time they took the fall asleep. Every time that has minutes I add that, if it is over 60 minutes I subtract 60 minutes. So like 30+35=65 | 65-60=5.

Lets do a problem: 9:15 (bed) | 10:30(woke up) | 30 minutes (fall asleep)

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