Answer:
33 cards
Step-by-step explanation:
3 cards already. 5 in 1 hour = 5 x 6 hours = 30 cards + 3 cards
33 cards
Answer:
a. y = 10.25x - 60
b. $60
c. 6 hours
Step-by-step explanation:
To find slope of table we use rise/run aka change in y/change in x
- Get two y values, and two x values, ex: (13,73.25),(40,350), now find the change in y and x respectively, (350-73.25)/(40-13) = 276.75/27 = 10.25
- The slope is 10.25, now we find the y-intercept or the amount of money she starts at, using the equation, y = mx+b, m being the slope, b being the y-intercept, y/x being the axes.
- We plug in a x,y value on the same row, along with the slope we just found. 350 = (10.25)(40) + b, 350 = 410 + b, b = -60.
- Therefore the equation is y = 10.25x - 60
To find the amount of money she spent on her uniform, we can look at the value she started with.
- We find the y-intercept, which is already found in the previous question (a).
- The y-intercept or amount she payed for her uniform is $60
To find the amount hours, we can plug in values for y, to solve for x. 'y' is the axis for earnings, so if we set 'y' to 0, that would mean that 'x' amount of hours would make -60 become 0
- Set up the equation: 0 = 10.25x-60
- Solve for x: 60 = 10.25x, x ~= 5.85 hours
- Note that you have to round up to 6 hours because Erin is paid hourly, and working for only 5 hours is not enough, thus the answer would be 6 hours.
18 3/4 of flour would be required to bake 15 dozen cookies
Answer:
Step-by-step explanation:
The following points (coordinates) lie on a straight line with slope 3:
(1, 0), (2, 3), (3, 6), (4, 9) ... and so on
So the linear function is y = 3x + b, where b is the y-intercept.
Switch the variable x and y with each other. Then the correct option is B.
<h3>What is inverse of a function?</h3>
Let the function will be
f: X → Y
Then the inverse function will be
f⁻¹: Y → X
The function is given below.
f(x) = 3x – 10
Then the inverse function of the f(x) will be
Put y in place of f(x).
x = 3y – 10
3y = x + 10
y = (x + 10) / 3
Switch the variable x and y with each other.
Then the correct option is B.
Learn more about inverse function here:
brainly.com/question/19425567
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