Mathematics, 27.01.2020 14:31 berniceallonce22

Gabriela is washing cars. she charges $15 for a car wash. she paid $145 for advertising, and uses $3 worth of cleaning products on each car she washes. when will gabriela begin to make a profit?
a) write an inequality to model the problem.
b) solve the inequality. show your work.
c) answer the question.

Answers: 3

Show answers

Answers

Gliberia 's one time investment =145$ Now she pays 3$cleaning products each time she washes a car.Her profit each time would then be 12$, but she only starts making profit when her cost of advertising is earned /compensated. Therefore she will not make any profit till the 145/12=12th(approx) time she washes a car.From the 13th time she washes a car ,she stars earning a profit of 12$ each time! Hope you find it useful :)

Answer from: AndiLizzi

From the 13th time she washes a car ,she stars earning a profit of 12$ each time

Answer from: Quest

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation:

Identify the transformation that maps the figure with center (7, 1) onto itself. a) rotate 180° cloc

Answer from: Quest

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

click to let others know, how is it

0.0

0 votes

report

Another question on Mathematics

Mathematics, 21.06.2019 13:40

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 − 24x 8,000 + 2x 8,000 − 2x

Answers: 1

Answer

Mathematics, 21.06.2019 16:30

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Answers: 3

Answer

Mathematics, 21.06.2019 17:10

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Answers: 3

Answer

Mathematics, 21.06.2019 19:20

Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a

Answers: 2

Answer

You know the right answer?

Gabriela is washing cars. she charges $15 for a car wash. she paid $145 for advertising, and uses $3...

Questions