Answer:
The answer to your question is:
Step-by-step explanation:
8.-
A (8, 28)
B (0, 0)
m = (0- 28) / (0 - 8)
m = 7/2
y = (7/2) x
A( 16, 4)
B (0,0)
m = (0-4) / (0 - 16)
m = 1/4
y = (1/4) x
The constant of proportionality represents the slope of the line
9.-
a) (0,0) represents the start of the race.
b)
Horse A = 5 min
Horse B = 4 min
-7 + 1/3 is -6.67
Step-by-step explanation:
-7 + 1/3 = -21 + 1/3
= -20/3 = -6.67
Let's eliminate the variable x first. To do this, multiply the first row of this system by 5 and mult. the second row by -7:
7x-5y=14 => 35x - 25y = 70
5x+7y=64 => -35x - 49y = -448
-------------------------
- 74y = - 378. Then y = 378/74 = 5.11.
Subbing 5.11 for y in the first equation, we get: 7x - 5(5.11) = 14. Then:
7x = 14+25.55 = 39.54. Dividing both sides by 7: x = 39.54/7 = 2.71
The solution is (2.71, 5.11). If this does not agree with any of your answer choices, please double check to ensure that you've copied down the original problem correctly.
I would take the 82 cm and then divide it by the 1 stay with me.Then you will take the answer of that part and then you will use the parcile products of that problem and then boom you have your answer!
Hope this helps!;)