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Nookie1986 [14]
3 years ago
14

Based on a survey, assume that 38% of consumers are comfortable having drones deliver their purchases. Suppose that we

Mathematics
1 answer:
Maslowich3 years ago
5 0

Answer:

n = 4

x = 2

p = 38\%

q = 62\%

Step-by-step explanation:

Required

Find n, x, p and q

n always represent the population surveyed;

So:

n = 4

x represents the sample from the population

So:

x = 2

p always represents the given proportion

p = 38\%

Solving for q

p + q = 1

q = 1 - p

q = 1 - 38\%

q = 62\%

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Tuan answered 20 customer service calls in 3 hours. At this rate, how many customer service calls can Tuan answer in 7.5 hours?
guapka [62]
First you take the 20 hours it took for the 3 service calls... 20/3=6.67. Then you multiply 6.67X7.5=50.025 hours.
3 0
3 years ago
Two workers can make two chairs in two days. How many chairs can 8 workers working at the same rate make in 20 days?
Vlad [161]

So we know that 2 workers can make 2 chairs in 2 days. Therefore if we use that same proportion, we will find that 8 workers can make 8 chairs in 2 days.

But the question is asking for 20 days, so we must multiply this by 10.

So, when we multiply 8 by 10, we find that in 20 days, 8 workers can make 80 chairs.

7 0
3 years ago
What is the equation for the line in slope intercept form plz help ASAP
Lubov Fominskaja [6]

Answer:

<em>y = - 4x + 5 </em>

Step-by-step explanation:

y = mx + b

(0, b) y-intercept

m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} }

~~~~~~~~~~

( - 2, 13)

(0, <em>5</em>) <----- y-intercept

(3, - 7)

(4, - 11)

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<em>y = - 4x + 5</em>

4 0
3 years ago
If △NMO ∼ △XYZ, and the area of △NMO is 147 square feet, find the area of △XYZ
sladkih [1.3K]

The area of △XYZ according to the figure is 363ft²

<h3>Area of triangles</h3>

The formula for calculating the area of a triangle is expressed as:

A = 0.5bh

  • b is the base
  • h is the height

<h3>Calculate area of each triangles</h3>

For the triangle  △NMO

Area of  △NMO = 0.5bh

147 = 0.5b(14/12)

147 = 7b/12

7b = 12 * 147

b = 252

b = 252ft

b = 3024in

Get the base of △XYZ

14/3024 = 22/XZ

XZ = 4,752in

Area of △XYZ = 0.5 (4,752)(22)

Area of △XYZ= 52,272in²

Area of △XYZ = 363ft²

Hence the area of △XYZ is 363ft²

Learn more on area of triangles here: brainly.com/question/17335144

6 0
2 years ago
4. Make up a system of equations with infinite<br> solutions
Taya2010 [7]

Answer:

\left \{ {{x+y=1} \atop {2x+2y=2}} \right.

Step-by-step explanation:

As long as the two equations represent the same straight line on the coordinate plane (they overlap), there will be infinite many intersections and infinite number of solutions.

6 0
3 years ago
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