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natulia [17]
2 years ago
14

At Lakeview middle school,there are 2 homeroom teachers assigned to every 48 students. is the number of stuff at this school pro

portional to the number of teachers
Mathematics
1 answer:
Zielflug [23.3K]2 years ago
6 0
Yes becuase constant rate will be 24/1
and when you keep subtracting 1 to the x value & and 24 to y value it will end with 0,0 meaning its proportion
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Help with matrice equations
Tasya [4]

Answer:

21) x=1, y=-1, z=2 and 23) x=3, y=-1, z=-1

Step-by-step explanation:

there are 3 equations in 21)

1) x+y-z=-2

2)2x-y+z=5

3)-x+2y+2z=1

solve for x by adding equation 2) and 1)

2)2x-y+z=5 +  1) x+y-z=-2   = 3x=3, then divide by 3 and x=1

solve for z by adding equation 1) and 3)

1) x+y-z=-2 + 3)-x+2y+2z=1

we then get a new equation, 4), by isolating z

3y+z=-1 which is 4) z=-1-3y

substitute our new equation, 4) z=-1-3y, and x=1 into equation 1) to get y

(1)+y- (-1-3y)=-2

isolate y to get y=-1

then substitute y=-1 into equation 4) to get z=2

check by substituting x=1, y=-1, and z=2 into all 3 equations

there are 3 equations

1)x+3y=0

2)x+y+z=1

3)3x-y-z=11

add equation 3) and 2) together to get x

3)3x-y-z=11 + 2)x+y+z=1

4x=12, x=3

substitute x=3 into equation 1) (3)+ 3y=0 to get y

3y=-3, y=-1

substitute x=3 and y=-1 into equation 2) to get z

(3)+(-1)+z=1,  z=-1

4 0
3 years ago
Please help me solve this in class rn
oksian1 [2.3K]
The grinch mountain was the answer
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2 years ago
You roll a number cube numbered from 1 to 6. What is the probability that the number is a 3? (Answers are rounded to the nearest
labwork [276]

Answer:

1/6

Step-by-step explanation:

6 0
3 years ago
Ms evans paycheck is $850 a week.If she works 49 hours per week, how muxh does she make an hour
Aneli [31]
She would make about 17.35 because $850 divided by 49 is 17.3469388 rounded is 17.35
3 0
2 years ago
Can someone double check my answer please !!
Anuta_ua [19.1K]

Answer:

C

Step-by-step explanation:

gg

6 0
2 years ago
Read 2 more answers
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