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
ser-zykov [4K]
3 years ago
12

The ratio of rock music to total CDs that ella owns is 25/40. Paolo has 50 rock music CDs. The ratio of rock music to total CDs

in hos collection is equivalent to the ratio of rock music to total CDs in ella's collection. How many CDs do they own?
Mathematics
1 answer:
qaws [65]3 years ago
5 0
They own a total of 120 CDs.

GIVEN:
Ella: ratio of rock music to total CDs that she owns 25/40
Paolo: has 50 rock music CDs. The ratio of rock music to total CD is equal to Ella's ratio.

Proportion: a/b = c/d where ad = bc

25/40 = 50/x
25x = 40 * 50
25x = 2000
25x / 25 = 2000 / 25
x = 80  total of Paolo's CDs

Total of Ella's CDs       =  40
Total of Paolo's CDs   =<u>  80</u>
Total CDs in all               120


You might be interested in
How to solve trial and error method i) y + 6 = 11
Sholpan [36]
1.) you have to subtract 6 from both sides to get rid of 6

2.) 11 minus 6 is 5

3). this leaves you with y = 5
6 0
3 years ago
Find the area of a rectangle with a width of x3 + 5x - 9 and a length of x2 + 8.
Drupady [299]

Answer:

A = x⁵ + 13x³ - 9x² + 40x - 72  

Step-by-step explanation:

The formula for the area of a rectangle is length X width, or A = lw.

Substitute the equations for the sides into the formula:

A = lw

A = (x² + 8)(x³ + 5x - 9)      <= use the distributive property

A = x⁵ + 5x³ -9x² + 8x³ + 40x - 72   <= collect like terms

A = x⁵ + 13x³ - 9x² + 40x - 72

4 0
3 years ago
Simplify the expression using the distributive property 2x (x- 9)​
Scrat [10]

Answer:

2x^2-18x

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Jake bakes and sell apple pies. he sells each pie for $5.75. the materials to make the pies cost $40. the boxes jake puts the pi
dezoksy [38]

Answer:

18\ pies

Step-by-step explanation:

Let

x-------> the number of pies

we know that

5.75x-40-12.50=50 -----> linear equation that represent the situation

solve for x

5.75x-52.50=50

5.75x=50+52.50

5.75x=102.50

x=102.50/5.75=17.8

Round to the nearest whole number

17.8=18\ pies

8 0
3 years ago
Read 2 more answers
John needs to make a total of 35 deliveries this week. So far he has completed 28 of them. What percentage of his total deliveri
lukranit [14]

Answer:

80%

Step-by-step explanation:

28/35=4/5

4/5=0.80

0.80=80%

6 0
2 years ago
Other questions:
  • In a study of the accuracy of fast food​ drive-through orders, one restaurant had 34 orders that were not accurate among 371 ord
    10·1 answer
  • How you multiply 523x12
    6·2 answers
  • The relationship between numbers in list X and list Y follows the rule Y = X +2.05 what diagram shows this relationship
    10·1 answer
  • Please answer I can’t retake!
    8·1 answer
  • 1) A square has a side length of 10 inches. What is the perimeter?
    6·2 answers
  • 2x+3y=3 and -10x+2y=-32
    14·1 answer
  • Lana runs a business where she fixes bikes. She charges $15.75 per hour for her labor as well as a $25 flat fee for any parts sh
    5·1 answer
  • If 3v/7 = 6then v = ? <br> I’m not sure
    5·2 answers
  • HELP!! Is –41/2 equivalent to (–4)1/2? Why or why not?
    13·1 answer
  • (please help!) <br> What is the length of AD?<br><br> AD=__
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!