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worty [1.4K]
2 years ago
5

Can't figure out the answer..

Mathematics
1 answer:
gavmur [86]2 years ago
7 0

Answer:

The 4th option is the correct answer

It will take  19 hours of lesson

Step-by-step explanation:

It is given that,

Ahmets rent a piano for $35 per month.

Also he earn $25 per hour giving piano lessons.

He wants to make profit $440 per month.

<u>To calculate the hours needed for getting profit $440 </u>

Let x be the total hours spending for piano lesson

So he earn $25x in one month

But the expenditure is piano rent $35 per month.

Profit = 440

25x - 35 =440

25x = 475

x = 19

So it will take 19 hours of lesson

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What is 0.00340.78 correct to 3 significant figures? explain your answer
timurjin [86]
What is 0.00340.78 correct to 3 significant figures?

a significant fugure is when the number lean solething ,so its can anyone except 0


so if we are reducing 0.00340.78 to 3 significant number

first we have to look for the significant nulber ,which are 3,4,7,8


so the answer can be 0.0034.7


hopefully this helps
7 0
3 years ago
Yal my someone please help me with this, its teh last thing
USPshnik [31]

1) 2 1/3 is also equal to 7/3

4 1/5 is also equal to 21/5

you need to make the denominators the same so you have to find the lowest common multiple, which is 15 since both 5 and 3 can be times by to make 15

you need to also times the numerators by the number you're timesing the denominator by

7/3 x 5 = 35/15

21/5 x 3 = 63/15

now add those together

35/15 + 63/15 = 98/15

now just convert 98/15 back to a mixed fraction

98/15 = 6 8/15

the answer is..

6  \frac{8}{15}

I'll do the others in a different answer!!

3 0
2 years ago
How to solve it and what thw answer is
vichka [17]
Idk i’m just trying to get my answer same bro
5 0
3 years ago
Read 2 more answers
Karen is studying the relationship between the time spent exercising per day and the time spent outside per day and has collecte
wariber [46]

Answer:

56.38=

Step-by-step explanation:

7 0
3 years ago
What multiples to give you -30 and adds to give you -13
vekshin1

Answer:

This is impossible

Step-by-step explanation:

But try -10x-3=30 -10+-3=-13

6 0
2 years ago
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