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
FrozenT [24]
3 years ago
14

of 320 consumers polled, some purchase blu-ray movies, some only purchase movies on dvd, and some do both. if 300 people polled

purchase blu-ray discs and 280 purchase dvds and blu-ray discs, how many people only buy dvds? please help a. 300 b. 20 c. 280 d. 40

Mathematics
1 answer:
Helga [31]3 years ago
3 0

Answer:

20 people only buy dvds.

Step-by-step explanation:

There are two groups in this problem. One group of people that buys dvds and one that buys blu rays. The total amount of people who buy blu rays is 300, but there's an intersection between the groups and the size of this is 280 people who actually buy both. In order to find out how many people only buy DVDs we first need to figure out how many only buy blu-rays. That is:

people who only buy blu rays = people who buy blu rays - people who buys blu rays and dvds

people who only buy blu rays = 300 - 280 = 20

We can now calculate the amount of people who only buy dvds and that is:

people who only buy dvds =total amount of people - ( people who only buy blu rays + people who buy both)

people who only buy dvds = 320 - (20 + 280) = 320 - 300 = 20 people

You might be interested in
Select the values that are solutions to the inequality x2 + 3x – 4 > 0.
marusya05 [52]
X ×2 + 3x -4>0
2x+3x-4>0
5x>4
x>4\5
x>0.8
I think that this right answer
3 0
3 years ago
Read 2 more answers
50× 3/8 how to reduce answer to lowest te
hoa [83]

The lowest term is \frac{75}{4}.

Solution:

Given expression is 50\times\frac{3}{8}

<u>To reduce this term to the lowest term:</u>

$50\times\frac{3}{8}=\frac{50}{1}\times\frac{3}{8}

Multiply the numerator and denominator.

$50\times\frac{3}{8}=\frac{150}{8}

Now, divide the numerator and denominator by the greatest common factor.

Here 150 and 8 both have common factor 2.

So, divide numerator and denominator by 2.

           $=\frac{150\div2}{8\div2}

           $=\frac{75}{4}

$50\times\frac{3}{8}=\frac{75}{4}

Hence the lowest term is \frac{75}{4}.

4 0
3 years ago
2. Irene wants to list the factors for 88. She
kati45 [8]

Answer:

Yes

Step-by-step explanation:

2•44=88

4•22=88

8•11=88

4 0
3 years ago
Read 2 more answers
Iris made bracelets with string and beads. She used x centimeters of string to make 7 bracelets. She used 17.8 centimeters of st
iren [92.7K]

Answer:

124.6 centimeters

Step-by-step explanation:

7(17.8) = x

Simplify:

x = 124.6

3 0
3 years ago
Help me this assignment is due soon.
AlekseyPX
So maybe it’s 5, it’s equivalent to the side with 6, just shorter
6 0
3 years ago
Other questions:
  • F(x) = 2x + 2 and g(x) = 7x + 1, which composition produces the greatest output
    9·1 answer
  • 180-(3x-10) simplify this
    15·2 answers
  • Please help me on this problem
    11·1 answer
  • P(B I A) can be read as "the probability that A occurs given that B has occurred"<br> Pls answer
    11·1 answer
  • What is the arc length when θ = 3 pi over 5 and the radius is 7 cm? (5 points)
    13·1 answer
  • The National Association of Realtors estimates that 23% of all homes purchased in 2004 were consideredinvestment properties. If
    13·1 answer
  • Which quadratic equation would be used to solve for the unknown dimensions?
    11·2 answers
  • Allen went out to dinner and hls total bill
    11·1 answer
  • 8) How many terms of the arithmetic sequence (2, 4, 6, 8, ...} will give a sum of 600?
    13·1 answer
  • I'm almost done if ur up​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!