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trapecia [35]
3 years ago
10

eric practiced piano and guitar for a total of 8 hours this week . He practiced the piano 1/4 of that time. How many hours did e

ric practice the piano this week?
Mathematics
2 answers:
Setler [38]3 years ago
7 0

Answer:2


Step-by-step explanation:Total 8 2 times 1 two by two 4three 6 four 8


Ulleksa [173]3 years ago
5 0

Answer:  Eric practiced piano for 2 hours this week.

Step-by-step explanation:  Given that Eric practiced piano and guitar for a total of 8 hours this week . He practiced the piano \dfrac{1}{4} of that time.

We are to find the number of hours that Eric practiced the piano this week.

Let, 'h' represents the number of hours that Eric practiced piano this week.

Then, according to the given information, we have

h=\dfrac{1}{4}\times\textup{total number of hours Eric practiced piano and guitar}\\\\\\\Rightarrow h=\dfrac{1}{4}\times 8\\\\\\\Rightarrow h=2~\textup{hours}.

Thus, Eric practiced piano for 2 hours this week.

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What does |x| mean? like what do the | | 'bars' symbolize or represent?
zavuch27 [327]

Answer: Absolute Value

Step-by-step explanation:

The | | is a symbol for absolute value. This signifies that the number inside would be positive. Now, this doesn't mean it will always be a number inside absolute value bars. It can also be expressions.

<u>Examples:</u>

|1|: Even though the number inside is a positive 1, we know that it cannot be negative under any circumstances. The only exception would be if there was a negative sign on the outside of the absolute value.

|-1|: We see that there is a -1 in the absolute value. This means that it is actually a 1, not -1. The absolute value is what makes everything inside positive.

|1-5|: To solve this, we know that 1-5=-4. Without the absolute value, the answer -4 would be correct. In this case, we have absolute value, so the answer is actually 4.

|x+2|: x+2 can easily be negative. This would happen is x was a negative number that is smaller than -2. x+2 can also be positive, but the absolute value guarantees that the ending result must be positive.

8 0
3 years ago
What would your salary each year be if you earned $5,000 per week?
choli [55]
Yearly salary would be 240,000 for 5,000 and 48,000 for 1,000 a week
8 0
3 years ago
Please help and no guessing please I need this.
vodka [1.7K]

Answer:

1. n + 8 = 10

2. \frac{n}{12}= 10

3. 8n - 6 = 34

4. 3(n + 12) = 45

5. No

6. Yes

Step-by-step explanation:

(only for questions 5 and 6)

5. If you substitute in y = 1, you get 1 * 49 = 0 or 49 = 0 which is not true.

6. If you substitute in b = 8, you get:

5(8-3)= 25\\5(5) = 25\\25 = 25

this is true.

7 0
3 years ago
What’s perimeter of triangle YXZ
Digiron [165]

Hope this helps

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4 0
3 years ago
Read 2 more answers
What is √101.6064 in to 1 decimal place and in standard form?​<br>NEED ASAP
Dimas [21]

Note that

10² = 100

0.08² = 0.0064

and

101.6064 = 100 + 1.6 + 0.0064

It also happens that

1.6 = 2 • 10 • 0.08

which means

101.6064 = 100 + 1.6 + 0.0064

101.6064 = 10² + 2 • 10 • 0.08 + 0.08²

101.6064 = (10 + 0.08)²

101.6064 = 10.08²

which means

√101.6064 = 10.08

which, to one decimal place, is approximately 10.1.

3 0
3 years ago
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