Answer:
y-8+3y+12
4y+4
Step-by-step explanation:
y-8+3y+12
4y+4 is your answer
Answer:
28.) c.
29.) a and c.
30.) a.
y=3x/5 +18/5
b.
(-6, 0)
31.) y=x-4
Step-by-step explanation:
28.)
pounds is equal to the y value of a graph, while months is equal to the x value of the graph. slope is equal to y/x. Therefore, it is the slope.
29.) rearrange the equation to isolate the y value and then divide every equation by 2. you will then get y=4x+8. When you plug each of the points in, you will notice only a and c are true.
30.) a.
The line equation is: y=mx+b. First find the slope. You can do that with subtracting y values over dividing x values. You should get: 3-6/-1-4=3/5.
With this slope, plug in one of the points for the x and y values, and solve for b. I used the point (-1, 3) and got b=18/5
b.
For this, I found that 0= 3(-6)/5+18/5
31.) Find the slope by subtracting the y values over subtracting the x values. This should give you a slope of 1. After you find the slope, plug in your slope as m in the line equation: y=mx+b. Next, find a point in that plot and plug those in to find the y intercept (b). I chose (-2, -6) and (2, -2) and got a slope of -4. However, you can also see that when x=0, y=-4, so that could also be a nice shortcut.
Hope this helps!
Answer: The Smith family price for the meal is $36.39
Step-by-step explanation:
The Smith family went out to dinner. • The price of the meal was $29.85.
The sales tax was 6% of the price of the meal.
LEts find sales tax amount
sales tax amount = price of meal * sales tax 6%(0.06)
= 29.85 * 0.06 = 1.791
sales tax amount = 1.791
Price of the mean with sales tax = 29.85 + 1.791= 31.641
The tip was 15% of the meal and the sales tax
now we find out tip amount for 31.641
15 % is 15/ 100 = 0.15
Tip amount = 31.641 * 0.15 = 4.74615
Now we add the top amount with 31.641
31.641+ 4.74615=36.38715
the Smith family price for the meal = $36.39
