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
Thepotemich [5.8K]
4 years ago
8

Tommy wished he practiced more before his violin concert. If he had practiced 1 1/2 more hours one week, he would have averaged

8 hours per week for the four week prior to his concert. How many hours did he practice in the 4 weeks?
Mathematics
1 answer:
Nimfa-mama [501]4 years ago
8 0

Answer:

30.5 hours

Step-by-step explanation:

If he were to average 8 hours PER week for 4 weeks, his total sum would have been:

8 * 4 = 32 hours

But he fell short of it. By how much?

By 1\frac{1}{2} hours!

So, he practiced 1  1/2 hours LESS THAN 32 hours, so his practice time is:

32-1\frac{1}{2}\\=32-1.5\\=30.5\\=30\frac{1}{2}

So, <u>he practiced 30.5 hours in the 4 weeks</u>

You might be interested in
Start of Questions The admission fee at an amusement park is $5.00 for children and $6.00 for adults. On a certain day, 314 peop
Greeley [361]

Answer:

144 children and 170 adults

Step-by-step explanation:

make 2 equations

make :

the children as the regarded as the variable : x

the adults are the regarded as the variable  : y

<em>5x + 6 y = 1740</em>

<em>x + y = 314</em>

<h3><u>solve this by the method of elimination </u></h3>

5x + 6y = 1740

5(x + y = 314)

= 5x + 5y = 1570

5x + 6y = 1740

5x + 5y = 1570

the 5x is cancelled out

6y - 5y = 1740 - 1570

y = 170

now replace the value of y in the eqaution

5x + 6 (170) = 1740

5x =720

x = 144

hence they were 144 children and 170 adults

mark as brainiest

3 0
3 years ago
Read 2 more answers
I worked it out as 11x^2 over 12y but I'm doubtful. <br><br> Thank you for helping!
elena-14-01-66 [18.8K]

similar answer 11x^2/12y-

5 0
3 years ago
Read 2 more answers
Translate the word phrase into a math expression.
Serggg [28]
It’s n-1 because 1 less than a number(n) would be n-1 and you may think what about 1-n, the words for that is one Minus a number or a number less than 1 but since it’s not that the answer is
N-1
4 0
3 years ago
Read 2 more answers
Solve the quadratic equation by completing the square x^2+5x-3=0
PIT_PIT [208]

{\tt{x =  \frac{ -b± \sqrt{ {b}^{2} - 4ac } }{2a} }}

{\tt{ x =  \frac{ - 5±\sqrt{{5}^{2}  - 4 \times 1 \times ( - 3)} }{2 \times 1} }}

{\tt{x =  \frac{ - 5±\sqrt{25 + 12} }{2} }}

{\tt{x =  \frac{ - 5 ±\sqrt{37}  }{2} }}

\:  \:

{\tt{x =  \frac{ - 5 +  \sqrt{37} }{2} }}

{\tt{x =  \frac{ - 5 -  \sqrt{37} }{2} }}

8 0
3 years ago
Show Work
zavuch27 [327]
1cm is equal to 10mm, so 37cm is the same as 370mm

1cm is equal to 0.01m, so 37cm is the same as 0.37m
8 0
3 years ago
Read 2 more answers
Other questions:
  • Name the property illustrated by each statement:
    14·1 answer
  • Four students did a survey to find the soda flavor sixth-grade students prefer. The table below shows the method each student us
    11·1 answer
  • Find the buying price of each of the following when 5% sales tax is added on the purchase of;
    10·2 answers
  • The size of a television screen is measured by the length of thee diagonal of the screen. What size is a television screen that
    14·1 answer
  • HELP ME FOR NUMBER 40 and 41
    15·2 answers
  • Write the following word phase as a mathematical equation. The sum of 7 and twice a number, squared.
    5·1 answer
  • (-3)(5)(-5)(-4) thank you
    15·2 answers
  • Math math math math math <br> i need help<br> tysm :) &lt;3
    6·1 answer
  • June has $1.95 in dimes and nickels. She has a total of 28 coins. how many of each type of coin does she have?
    5·2 answers
  • Identify the expression equivalent to 2x 8 by substituting x = 7 and x = 5. a. 2x 10 10 b. 2(x 2) c. (x 4) (x 4) d. (x 4) e. 2(2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!