Answer:
161 donuts
Step-by-step explanation:
(231+89)/2 then add one more donut as the question asked for at least $231
320/2 = 160 + one more donut = 161 donuts have to sold to make at least $231.
You have add the machine price as he wouldn't be making a profit off it if he didn't surpass what he spent for it.
Check your work by doing 161 times 2 minus 89 minus the 1 donut added and you'll get the $231. Not subtracting the one shows the profit of a dollar aka at least $231
X² - 64 = 0
(x - 8)(x + 8) = 0
x = - 8, 8
Your other solution is - 8
Answer:
1/3x - 6
Step-by-step explanation:
Perpendicular lines have the negative reciprocal slope. This means that you find the slope of the original line which is -3. Then you flip it so it’s -1/3. Lastly you change the sign 1/3. The negative 6 is the y intercept the question asked for.
Answer:
For a set of data, a number for which 75% of the data is less than that number. The third quartile is the same as the median of the part of the data which is greater than the median. Same as 75th percentile. See also.
Step-by-step explanation:
Answer:
3/4
Step-by-step explanation:
Average change is change in y / change in x
(y2-y1)-(x2-x1)
(3-0)/(-3-(-7))
3/4
In (-7,0)
-7 is x1, 0 is y1
In (-3,3)
-3 is x2 and 3 is y2