Answer:
The price of pretzels in 1975 = $1.80
Step-by-step explanation:
To answer this question we are assuming the steady rate means linear.Let x be the year and y be the price.
We need to find the slope
m = (y2-y1)/(x2-x1)
= (4.80-4.05)/(2015-2005)
=.75/10
= .075
The slope is .075
We can use the point slope form of the equation
y-y1 = m(x-x1)
y-4.80 = .075(x-2015)
Distribute
y - 4.80 = .075x -151.125
Add 4.80 to each side
y - 4.80+4.80 = .075x -151.125+4.80
y = .075 x - 146.325
We want to find out how much pretzels were in 1975. Put in x=1975
y = .075(1975) -146.325
y = 148.125-146.325
y=1.80
Answer:
D
Step-by-step explanation:
The y axis is the vertical axis; the one going up and down.
A reflection means that a point is an equal distance away from its reflector as the basis was.
A was a reflection across the line y=x.
B was a reflection across the x axis with a 90 degree rotation.
C was a reflection across the x axis.
That leaves D.
Answer:
6/10
Step-by-step explanation:
[P(x) + P(z) + P(a)]/P(all) = (3+2+1)/(3+4+2+1) = 6/10
Answer:
1/5
Step-by-step explanation:
When we read sequences, we read left to right.
When finding the common ratio, you can use any two consecutive numbers, and it'll always give you the same ratio.
For instance,
3:15=1/5
15:75=1/5
