Answer:
B) Y = 3/2x -8
Step-by-step explanation:
Make a proportion to find Mr. Yoshi's percentage:
60/75 = x/100
Cross Products:
6000 = 75x
x = 80
So 60/75 = 80/100 which is 80%
Now for the student teacher:
The student teacher graded 75-60 = 15 papers.
Make a proportion:
15/75 = x/100
Cross products:
75x = 1500
x = 20
So 15/75 = 20/100 which is 20%
So Mr. Yoshi: 80%
Student Teacher: 20%
You can check by adding the two scores together and seeing if the sum is 100%:
80% + 20% = 100%
It is, so the answer is correct.
For 1 bags of leaves
= $15/5
= $3
Martin can earn $3 for each bag
so,
For 24 bags of leaves
= $3 x 24
= $72
Answer:
Your answer is: (-1/2, 3/2)
Step-by-step explanation:
y = x + 2
y = -3x
Use substitution by plugging the second equation into the first.
-3x = x +2
Subtract x from both sides to combine the variables.
-4x = 2
Divide both sides by -4 to isolate the variable x.
x = 2/-4
Simplify.
x = -1/2
Plug x into one of the equations to find y.
y = (-1/2) + 2
y = 3/2
Plug x into the other equation to confirm your answer.
y = -3(-1/2)
y = 3/2
Your answer is: (-1/2, 3/2)
x= -2
because y = 1/2x +4
-y = 2x +1
0 = 5/2x + 5
-5 = 5/2x
x = -2
Hopes this loves.
