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
Olin [163]
3 years ago
12

craig likes to collect records. last year he had 10 records in his collection. now he has 15 records. what is the percent increa

se of his collection?
Mathematics
1 answer:
schepotkina [342]3 years ago
7 0

Answer:

His collection increased in a 20%.

Step-by-step explanation:

If 100% represents 10 records, what percentage would be for 12 records?

x = 12 100% / 10 = 120%

So, if we subtract 120% - 100%, it's gonna result in a difference of 20%, which means that 12 represents a 20% more, or his collection increased in a 20%.

You might be interested in
Value of x<br><br>30x=30-30​
Vladimir79 [104]

Answer:

<h2>0</h2>

Step-by-step explanation:

30x = 30 - 30

=  > 30x = 0

=  > x =  \frac{0}{30}

=  > x = 0

5 0
3 years ago
Read 2 more answers
Which ordered pair is a solution to the system of inequalities?
Vinil7 [7]
A! Because 9 is greater than 2 and 9 is greater than 7






5 0
3 years ago
Read 2 more answers
The price of an item is $35 but you have to pay $38.22 what is the sale tax rate?
Vilka [71]
3.22$ because your originally spending 35$ so the added 3.22$ makes up 38.22$
6 0
4 years ago
A dog walker charges a flat rate of $6 per walk plus an hourly rate of $30. How much does the dog walkercharge for a 45 minute w
leonid [27]

hello

from the question given, the dog walker charges a flat rate of $6 and an extra $30 per hour.

we can write out an equation in function notation

let the number of hours be represented by x

f(x)=6+30x

now we can proceed to solve the cost of the walk for 45 minutes

\begin{gathered} 1hr=60\min s \\ \text{xhr}=45\min s \\ x=\frac{45}{60} \\ x=\frac{3}{4} \\ \text{therefore 45mins = 3/4 hours} \end{gathered}

now we can input the value into the equation and know the cost for 45 minutes walk

\begin{gathered} f(x)=6+30x \\ x=\frac{3}{4} \\ f(x)=6+30(\frac{3}{4}) \\ f(x)=6+22.5 \\ f(x)=28.5 \end{gathered}

from the calculation above, the cost of 45 minutes walk will cost $28.5

6 0
1 year ago
Write an equation that is perpendicular to y=3/5x-1 and passes through the point (9,14)
Leokris [45]

Answer:

y=(-5/3)x+29

Step-by-step explanation:

we will use the base formula y=mx+b

In order to be perpendicular, the slope must be the flipped fraction and have the opposite sign, so our m is (-5/3)

y=(-5/3)x+b

You can plug in the (9,14) point in order to find the b

14=(-5/3)(9)+b

14=(-45/3)+b

14=(-15)+b

14+15=b

29=b

and so altogether our equation is y=(-5/3)x+29

8 0
3 years ago
Other questions:
  • Did the maya create chocolate
    12·1 answer
  • What property is shown in the equation below? 3a*9 c= 27ac?
    11·2 answers
  • two physical therapists have a total if 16 patients to see in one day. marcie has to see 2 more patients than lewis . how many p
    13·2 answers
  • You discovered 1000 grams of an unknown element called Coolium 23 that has a half life 23 days. How long will it take for you to
    12·1 answer
  • Using the chart above, which of the following statements is true when comparing the account balances?
    10·1 answer
  • At a real estate​ agency, an agent sold a house for ​$327,000. The commission rate is ​7.5% for the real estate agency and the c
    6·1 answer
  • Lin is reading a 47-page book. She read the first 20 pages in 35 minutes.
    8·1 answer
  • Solve the system of equations using substitution.
    12·2 answers
  • please someonw help me with 7(a) please please please please please please please please please please please please please plea
    10·2 answers
  • HELP DUE TOMORROW GUYS
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!