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12345 [234]
3 years ago
13

What answer to 10 + a - 5 + 2a

Mathematics
1 answer:
Tanzania [10]3 years ago
5 0

Answer:

5+3a

Step-by-step explanation:

10 + a -5 + 2a

5+a+2a

5+3a

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A construction company wants to hire carpenters for $220 a day and plumbers for $260 a day. The company wants to hire at least 1
joja [24]

Answer:


Step-by-step explanation:

Yes the company can hire 6 carpenters and 12 pumbers

So first lets find out how much it costs to have 6 carpenter for $220 a day.

$220 × 6 = $1320  this is how much it cost to pay 6 carpenters for one day.

Now lets find how much it cost to 12 plumbers at $260 a day.

$260 × 12 = $3120 this is how much it costs to pay 12 plumbers a day.

The total amount you have to pay to the workers is:

$3120 + $1320 = $4440

Your budget was $4500 so the total costs for the workers is $4440 which means you can hire those workers and you would still have $60.


3 0
3 years ago
How do i turn 24% into a fraction
PolarNik [594]
You can remove the % sign if you divide the number by 100:

\frac{24}{100}


This is because % is defined as 1/100, and the name (per-cent) actually meant this originally!
we can also simplify it: let's divide it by 4:

\frac{6}{25}




7 0
3 years ago
In 3 1/8 hours Aldo reads 7 1/2 chapters. What is the unit rate in chapters per hour ?
geniusboy [140]
Use a calculator

Just look up how to find unit rates and it should be easy
8 0
3 years ago
Ivan has 4 hours of Music on his MP3 player Jazz makes up 1/6 of the total time how many hours of jazz are on Ivan's MP3 player
Crank
So theres 4 hours and 60min equals 1 hour, so multiply 4 by 60 to get 240, so theres 240 minutes of time on the mp3. So 1/6 of that total time (240min) was on jazz, so what you do is divide 240 by 6 to get 40, so every 1/6 is 40min. So you could say he spend 40min listening to jazz, or you could say he spent 2/3 of an hour listening to jazz
5 0
2 years ago
Given the proportion 8/5 = 2/m-3 what is the value of m
m_a_m_a [10]

Hey there! :)

Answer:

m = 4.25, or 17/4.

Step-by-step explanation:

Given the proportion:

\frac{8}{5}= \frac{2}{m-3}

Cross multiply:

8(m - 3) = 5 · 2

Distribute the 8:

8m - 8(3) = 10

8m - 24 = 10

Add 24 to both sides:

8m = 34

Divide both sides by 8:

8m/8 = 34/8

m = 4.25, or 17/4.

8 0
3 years ago
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