A sample of the amounts paid for parking at the Azikov parking garage last weekend is depicted below, use the information to answer the questions that follow.
Amount 0.30 0.60 0.90 1.20 and 1.50 1.80 and 2.10 2.40
paid and and and under1.50 and under2.10 and and
2.
under under under
under
under
under
0.60 0.90 1.20
1.80
2.40 2.70
Frequency 2 7
15 28
14
9
2
NB: Use two decimal places
1 Estimate the mean amount paid
i Calculate the sample standard deviation and interpret
Calculate the sample coefficient of variation for the distribution

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

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

answer:

125 yards

explanation:

75+50=125. that is my answer