The marketing director of a large department store wants to estimate the average number of customers who enter the store every five minutes. she randomly selects five-minute intervals and counts the number of arrivals at the store. she obtains the figures 53, 32, 41, 44, 56, 80, 46, 29, 32, and 75. the analyst assumes the number of arrivals is normally distributed. using these data, the analyst computes a 95% confidence interval to estimate the mean value for all five-minute intervals. what interval values does she get?

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

1

it is x equals 3   plese mark me really need it

step-by-step explanation: