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tatyana61 [14]
3 years ago
11

On Monday marco practiced the piano for 7/10 hour. On Tuesday he practiced for 1-5/6 hours. He is supposed to practice 1-1/4 hou

rs each day. Use thjis information to write a question that involves adding or subtracting fractious
Mathematics
2 answers:
aivan3 [116]3 years ago
7 0

Answer:


Step-by-step explanation:

Marco practiced for only 7/10 hour on Monday (less than the expected 1 1/4 hour) and 1 5/6 hours on Tuesdays.

What was the total number of hours spent by Marco on Monday and Tuesday?

What was the total number of hours that he was supposed to practice at minimum?

How much longer did he actually practice, total, on Monday and Tuesday (or, if applicable, what was the deficit)?

nexus9112 [7]3 years ago
5 0

Answer:

We know that Marco practice \frac{7}{10} hours on Monday. He practiced 1\frac{5}{6} hours on Tuesday, and he is supposed to practice 1\frac{1}{4} hours each day. So, a question would be, how many hours more Marco practiced on Tuesday than on Monday.

To answer this question, we have to find the difference between the hours he practiced each day

1\frac{5}{6}-\frac{7}{10}=\frac{11}{6}-\frac{7}{10}=\frac{110-42}{60} =\frac{68}{60}=\frac{34}{30}=\frac{17}{15}=1\frac{2}{15} \approx 1.13hr

So, Marco practiced around an hour more on Tuesday than on Monday.

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Maya spent 40% of her savings on a bike it cost her $85 how much money does she have left
shusha [124]
Let be Z the money ;
We have ( 40 / 100 ) x Z = $85 ;
( 4 / 10 ) x Z = $85 ;
( 2 / 5 ) x Z = $85 ;
Z = $( 85 x 5 ) ÷ 3 ;
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8 0
3 years ago
If the x is the number, how would you represent 9 more than the number
Roman55 [17]

Answer:

x = x+9

Step-by-step explanation:

well that is the only way you can do it as we do not know about what x is. also, if you meant by x + (x*9), you can represent that as x*10

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3 years ago
Y+6=2 <br><br> Make sure all work is shown
defon

Answer:

y=-4

Step-by-step explanation:

y+6=2

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y=-4

3 0
3 years ago
Read 2 more answers
Could yall help please
ser-zykov [4K]

Answer:

C

Step-by-step explanation:

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I hoped that helped

6 0
3 years ago
Suppose x is a normally distributed random variable with a mean of 12 and a standard deviation of 3. The probability that x equa
Contact [7]

Answer:

The probability that x equals 19.62 is 0

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

In the normal probability distribution, the probability of an exact value, that is, P(X = x) is 0. Thus, the probability that x equals 19.62 is 0

8 0
3 years ago
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