David purchased some cookies at the cost of
5 for $4 (5/4=1.25) and
sold them at 4 for $5(4/5=0.80).
To find cost per cookie subtract 1.25-0.80=0.45
David made a profit of $180 in total ( divide profit per cookie cost: 180/0.45= 400)
How many cookies did David purchase to make that much money?
He needed to make 400 cookie to make the profit of $180.
we use the rectangle rule
96-92=4 parts of 92 octane
98-96=2 parts of 98 octane
4x+2x=12
6x=12
x=2
4x=8 liters of 92 octane
2x=4 liters of 98 octane
Answer:
y = 0x - 3
Step-by-step explanation:
Looking at just the plots, you can see that they are equal in y-value, so they would make a horizontal line, meaning no slope. That just leaves the y-intercept, and if it is horizontal, and they are both at y level -3, the intercept is -3. So putting it in slope-intercept form, you get y = 0x - 3. The 0 signifies the line doesn't slope down or up, just horizontally.
From 4pm to 5pm the temperature dropped 11.55 degrees
noon 85.4 + 3.85 = 89.25
1st hr 89.25 + 3.85 = 93.1
2nd hr 93.1 + 3.85 = 96.95
3rd hr 96.95 + 3.85 = 100.8
4th hr 100.8 ??
5 pm 89.25
100.8-89.25= 11.55
