1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tensa zangetsu [6.8K]
3 years ago
12

Eli practices for a piano recital 3 3 /4 hours in one week. In the same week, he practices basketball 1 2/ 3 hours. How much lon

ger does he practice for his piano recital?

Mathematics
2 answers:
Alexxx [7]3 years ago
5 0

3 3/4 - 1 2/3=15/4 -5/3=45/12 - 20/12=25/12


astraxan [27]3 years ago
4 0

To answer a question of "how much longer", you need to find the difference between the two times. That is, you subtract the basketball practice time from the piano practice time:

... 3 3/4 hours - 1 2/3 hours

There are many ways to do this subtraction. Since these are time values, you can convert the fractional hours to minutes. You know that an hour is 60 minutes, so 3/4 hour is (3/4)·(60 min) = 45 minutes, and 2/3 hour is (2/3)·(60 minutes) = 40 minutes. Now the difference can be computed to be ...

... 3:45 hours - 1:40 hours = 2:05 hours, or 2 hours and 5 minutes

_____

Another way to do this subtraction is to convert the fractions to ones with the same denominator. You know that 12 is a multiple of both 4 and 3, so a denominator of 12 can be used for each of the fractions:

... 3/4 = (3/4)·(3/3) = 9/12

... 2/3 = (2/3)·(4/4) = 8/12

Then the time difference is ...

... 3 9/12 hours - 1 8/12 hours = 2 1/12 hours

Sine 1/12 hour is 5 minutes, these two computations are in agreement.

_____

Yet another way to subtract these mixed numbers is to let your calculator do it. Many graphing calculators have the ability to display answers either as a decimal or as a fraction. The attachment shows a fraction display. I'm not using a mixed-number input for this calculator, so I'm just adding the fraction to the integer part.

Summary: Eli practiced piano 2 1/12 hours longer.

You might be interested in
Given m || n, find the value of x
il63 [147K]

Answer:

if m and n are parallel then the value of x is 11

4 0
3 years ago
What is the simplified value of the expression -2.6+5.8​
solniwko [45]

Answer:

[See Below]

Step-by-step explanation:

✦ Solve:

  ✧ -2.6 + 5.8 = 3.2

✦ Sometimes in math simplify could mean just solve and get the smallest version of that number. That's what it means in this case. So the simplified version would be 3.2.

~<em>Hope this helps Mate. Feel free to message me if you need anything. </em>

4 0
2 years ago
The circumference of jj's basketball is 29.6 inches. Will it go through the basket that is 10 inches in diameter?
Olenka [21]

Step-by-step explanation:

circumference of jj's basketball = 29.6 inches

Circumference of basket = 3.14 * 10 = 31.4 inches

Because

circumference of jj's basketball < Circumference of basket

Therefore ball will go through the basket.

7 0
3 years ago
Read 2 more answers
A van travels 150 miles on 6 gallons of gas. How many gallons will it need to travel 325 miles?
diamong [38]

Answer:

C. 13 gallons

Step-by-step explanation:

150 divided by 6 is 25. 325 divided by 25 is 13.

8 0
3 years ago
Simplify the expression by combining like terms. 16+8−3+6−9
lyudmila [28]
Answer=18
First step combine the positive like terms
16+8+6
|
|
\/
30
Second step is to combine negative like terms with 30
30-3-9

When you do this you add 9 and 3 together since they are similar to each other so it equals 12 there for the equation becomes.....
30-12

Final answer 18
4 0
3 years ago
Other questions:
  • 15 foot circumference equals what diameter
    9·2 answers
  • Angel baking factory make 764 cakes in 1 week. Mathew factory make 1348 cakes in 2 weeks. Who makes the most cakes in 1 day ?
    6·1 answer
  • A line goes through the points (-6, -8) and (12, 7). a) What is the slope of the line? Show your work. b) Write the equation of
    9·1 answer
  • Divide up to two decimal places.<br>12427 by 349<br>explanation please! thankyou.​
    10·1 answer
  • 9*7/2*6*1-3*876+12,557,000
    8·1 answer
  • Write each fraction as a decimal as a fraction and percent 53/53
    11·1 answer
  • The graph below shows the eye color for a classroom of students.
    8·1 answer
  • A contractor completed five-ninths of a job before a second contractor completed an additional one-third. What fraction of the j
    11·1 answer
  • Find the measure of the missing angle using the exterior angle sum theorm.
    10·1 answer
  • Tim Worker wants to compare the cost of online banking with that of check writing. Tim writes an average of 35 checks a month fo
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!