Answer:
A. the one in the table because after two hours it is the size of the one that began at 20 cm
B. the one describes by the graph because after 10 hours it would be 0 cm and the one described by the equation would be 5 cm
C. the one described by the graph will burn out in 10 hours as shown in the graph and the one described by the equation will burn out in 12 hours
Step-by-step explanation:
i hope this helps
Answer:
y = -2x + 5
Step-by-step explanation:
To find the slope, you need to pick two points and put into the slope formula. It doesn't matter which ones, you will get the right answer regardless. I used (-3, 11) and (2, 1).
Now that you have the slope, you can plug it into point-slope form to find the equation in slope-intercept form. You will also need to plug one of the given points. Again, it doesn't matter which one.
Answer:
the sales associate has to sell 4 computers to make the same amount of money under both plans
Step-by-step explanation:
y=money
x=computers sold
Plan 1: y=30x+180
Plan 2: y=75x
75x=30x+180
45x=180
x=4
Answer:
X = 26
Step-by-step explanation:
So we know that a straight line equals 180º and we're given both equations. So you just have to set both equations equal to 180. It should look like:
2(x + 15) + (3x + 20) = 180
Use distributive property on the first equation
2(x + 15) = 2x + 30 so now your equation looks like 2x + 30 + 3x + 20 = 180
Add like terms
2x + 30 + 3x + 20 → 2x + 3x = 5x → 30 + 20 = 50
Your equation should look like
5x + 50 = 180
Subtract 50 from both sides, your goal now is to get x by itself
180 - 50 = 130
Divide both sides by 5. 130/5 = 26
X = 26
So now the equations added up should equal 180º. Just plug 26 in to x to solve.
2(26 + 15) + (3 x 26 + 20) = 180
