On a recent survey, 90% of those surveyed indicated they preferred walking to running. if 130 people preferred running to walking, how many people where surveyed? include an explanation!

145 people were surveyed

Step-by-step explanation:

1. Let's review the information given to answer the question correctly:

Percentage that indicated they preferred walking to running = 90%

2.  If 130 people preferred running to walking, how many people where surveyed?

For answering this question, we will use the Rule of Three simple, this way:

x = Number of people surveyed

90 * x = 130 * 100

90x = 13,000

x = 13,000/90

x = 144.44

But we need a whole number for an accurate answer, so we round the value of x to the next whole number.

145 people were surveyed

$9.41

step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is