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lubasha [3.4K]
4 years ago
14

Which expression is equivalent to 2 (a + 2 b) minus a minus 2 b?

Mathematics
2 answers:
Delvig [45]4 years ago
6 0

Answer:

a

Step-by-step explanation:

Elis [28]4 years ago
5 0

Answer:

a -2b

Step-by-step explanation:

2 (a + 2 b) - a - 2 b

Distribute

2a +4b -a-2b

Combine like terms

2a-a +4b-2b

a -2b

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use this information for items 1-3. Aaron has $65 to rent a bike in the city . It costs $15 per hour to rent a bike. The additio
marissa [1.9K]

Answer:

<h2>You will ride for 4 hrs 8min</h2>

Step-by-step explanation:

What we are expected to solve for that the problem did not expressly state is most likely the number of hours that you could ride for an amount of $65.

firstly we need to model the inequality (equation) for this scenario.

the constant fee= $3 additional fee for helmet

3+15n\leq 65\\\\

We can now solve for n since the above inequality satisfies the condition presented in the problem statement.

 3+15n\leq 65\\\\15n\leq65-3\\\\ 15n\leq 62

Divide both sides by 15 to find n

n\leq 62/15\\\\n\leq 4hrs -8min

8 0
3 years ago
If postage costs $.54 for the first ounce and $.22 for the each additional ounce, calculate the cost of mailing a 10- ounce enve
sweet-ann [11.9K]

Answer:

Hence, the total cost of mailing 10 ounces is:

$ 2.52

Step-by-step explanation:

If postage costs $.54 for the first ounce and $.22 for the each additional ounce.

i.e. cost of first ounce=$ 0.54.

Now let x denote the number of ounces after the first ounce,

Hence, the cost of x ounces=$ (0.22×x)=$ 0.22 x

Hence, the cost of mailing (x+1) ounces is: $ (0.54+0.22 x)

Now, we have to find the cost of  mailing a 10- ounce envelope.

i.e. after the first ounce we need 9 more ounces.

Hence, the total cost of mailing is calculated as:

=$ (0.54+0.22\times 9)\\\\=$ (0.54+1.98)\\\\=$ 2.52\\

Hence, cost of mailing 10 ounces is:

$ 2.52

8 0
4 years ago
Read 2 more answers
Find the volume of each prism. Please help mee and thank you.​
inna [77]

Answer:

Step-by-step explanation:

4 0
2 years ago
What is 1.532 rounded to the nearest hundredth
Anni [7]

Answer:

1.53 would be the answer

Step-by-step explanation:

If you are rounding to the nearest hundredth you are rounding to the 2nd decimal place. Since the next number is under 5, we would just drop it.

8 0
3 years ago
Use your plan of dividing both sides by five to solve the equation. What is the value of x?
sleet_krkn [62]
Where’s the equation
4 0
3 years ago
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