Answer:
Step-by-step explanation:
8/3=3(c+5/3)
multiply both sides by 3
8=9(c+5/3)
divide both sides by 9
8/9=c+5/3
subtract 5/3 from both sides
c=8/9-5/3
change 5/3 to 15/9
c=8/9-15/9
c=-7/9
18.96 divided by 12 equals the price of 1 rose
price of 1 rose= 1.58
1.58 multiplied by 5= 7.9
the cost of 5 roses is $7.90
5*2=10
10*3=30
30*2=60
60*3=180
180*2=360
Answer:
Step-by-step explanation:
To do this we will first use the slope formula to find the slope of the line. Given 2 points, you can't do anything else BUT find the slope. Always start there. The slope formula is:
Plugging in our values from the points where y2 is 7, y1 is 3, x2 is -4 and x1 is -2:
So the slope is -2. Now we will pick either point and use the x and y coordinates to fill in the point-slope form of a line, which is:
where y1 and x1 are the coordinates from the point we pick, and m is the slope we just solved for. It doesn't matter which point you pick to use as your x and y coordinates; either one will give you the exact same equation...PROMISE!!
I chose (-2, 3), no reason in particular. x1 is -2 and y1 is 3:
which simplifies a bit to
y - 3 = -2(x + 2) and a bit more to
y - 3 = -2x - 4 and even more to
y = -2x - 4 + 3 and finally to our final line in slope-intercept form:
y = -2x - 1
Choice a.