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
Masteriza [31]
2 years ago
15

Two different floor plans are being offered in a new housing development. Several prospective buyers from three different age gr

oups were surveyed about which plan they preferred. Find the probability that a randomly selected buyer preferred Plan A or was in the 40- to 49-year-old age group.

Mathematics
1 answer:
zepelin [54]2 years ago
3 0

Answer:

0.677

Step-by-step explanation:Add up the values in the plan A column. There are 10+12+16 = 38 people who prefer plan A.

Add up the values in the "40-49" row to find that 16+8 = 24 people are ages 40 to 49.

We have 38+24-16 = 46 people who either prefer plan A, are aged 40-49, or fit both descriptions. I subtracted off 16 because those 16 people were counted twice when adding 38 and 24.

An alternative way to get this value of 46 is to add up everything that is in column1 or row 3 (or both). So that would get 10+12+16+8 = 46.

Now add up everything in the table to find out how many people were surveyed total. That would be 10+7+12+15+16+8 = 68 people overall.

The probability of someone liking plan A, or being age 40-49, or both is 46/68 = 0.6765 approximately. Rounding to 3 decimal places gives 0.677

You might be interested in
Is this the correct answer?
andreev551 [17]

Answer:

y = 3x + 5

General Formulas and Concepts:

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define variables</u>

Slope <em>m</em> = 3

y-intercept <em>b</em> = 5

<u>Step 2: Write linear equation</u>

y = 3x + 5

6 0
3 years ago
HELP PLEASE!!!!<br> Subtract: 7/8−1/2<br> 14 <br> 38 <br> 58 <br> 34
drek231 [11]

Answer:

7/8 - 1/2

= 0.37

hope it helps!

5 0
3 years ago
At the beginning of year 1, Amanda invests $800 at an annual compound interest rate of 5%. She makes no deposits or withdrawals
VARVARA [1.3K]

Answer:

its A my guy did it on apex 972.41

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ME WITH THIS GEOMETRY PROBLEM!!!!!!!!!!!!!!!!!!!!!!!!!!!
Leno4ka [110]
The question is asking for the cubic feet inside the prism, which means it wants the volume.

The volume equation is:
Volume= length x width x height

The issue is: the measurements of the prism are given to us in inches, while the problem asks for feet. We just need to convert each measurement, by dividing each by 12, since there are 12 inches per foot.
40 inches/12=3.33 feet
45 inches/12=3.75 feet
30 inches/12=2.5 feet

Now, we just have to plug in the numbers we found to solve for the volume.
V=(3.33 feet)(3.75 feet)(2.5 feet)
V=31.22 cubic feet
6 0
3 years ago
Does anyone know anything bout angles?
irakobra [83]

Complementary is when the two angles add up to 90 degrees.

Supplementary is when the two angles add up to 180 degrees.

To find a complementary angle do 90 minus the given angle.

To find a supplementary angle do 180 minus the given angle.

7 0
3 years ago
Other questions:
  • The table represents a linear function. find the values of a,b, and c. Show your work.
    13·1 answer
  • What expression is equivalent to 4x-5-6x+7?
    7·2 answers
  • DESPERATE! PLEASE HELP!! BRAINLIEST! Show how you got answer please!
    11·1 answer
  • 1. What is the equation of the line in slope-intercept form?
    13·2 answers
  • The options are (will/will not) and (above/below)
    7·2 answers
  • Amanda bought a 6 cup bag of shredded cheese for $6.89. She used 2.25 cups to make lasagna and 1.25 cups to make pizza. How much
    14·1 answer
  • What is the y-intercept in the equation 2y = x -8
    5·1 answer
  • Please help .........
    6·1 answer
  • Simplify the expression using the order of operations. 3 (8-4)2 + 7.9
    12·2 answers
  • ILL MARK BRAINILEST !! 80 POINTS
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!