Answer:
76 ice cream cones
Step-by-step explanation:
Given the model : y=1.8x−76.9 ;
Which shows the relationship between temperature and number of ice cream cones sold ;
Using the model, the predicted number of ice cream cones sold when temperature is 85°F
Hence, x = 85
Putting x = 85 in the model and solve for y
y = 1.8(85) −76.9
y = 153 - 76.9
y = 76.1
Hence, the number of ice cream cones sold is 76
First we calculate the slope (which is called "m".
Slope = m = (Y2 -Y1) ÷ (X2 -X1)
m = (-8 -1) / (5 -2) = -9 / 3 = -3
We next fill in this equation: b = y -mx
We know m = -3 and we can choose a point (2, 1) to calculate "b"
b = 1 --3 * 2 b = 7
Putting this into y = mx +b
y = -3x +7
The answer is 44+y=x
(You're welcome if this helped, Brainliest would be appreciated) <span />
40/60=0.667km per minute
2/0.666777=3
It takes 3 minutes
(0.5)^2 = 0.25 yes
(-0.2)+(-0.05) = -0.25 no
|-3+2.75| = |-0.25| = 0.25 yes
-(-0.25) = 0.25 yes
2x-1.75x = 0.25x no