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lapo4ka [179]
3 years ago
13

5.) Mrs. Cannon is going to be giving a test that is 100 points. The test will have short answer questions that are 10 points ea

ch and multiple-choice questions that are worth 5 points each. A.) Identify the variables and what each represents?

Mathematics
1 answer:
vivado [14]3 years ago
8 0

Answer: x= how many short answer response questions on the test and y= how many multiple choice questions

hope this helps :)

Step-by-step explanation:

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P(z=1.85) what is the area to the left of z= 1.85
Kisachek [45]
0.84(because 20% of the observations are about 0.84)
You've found the 80th percentile! The 80th percentile of the standard normal distribution is 0.84. That's because 80% of the observations fall below 0.84. (Note: The 80th percentile of every normal distribution is 0.84 times the standard deviation above the mean.)

 


7 0
3 years ago
Please help me it’s due today please help me please please people help me please please
SCORPION-xisa [38]

Answer:

a) 0≠ -10

b) x= -3

c)y= 0

Step-by-step explanation:

a) 3-4x=-7-4x

3-4x=-7-4x\\Adding \ 4x \ on \ both \ sides\\3-4x+4x=-7-4x+4x\\3-0=-7\\Adding \ -3\\3-0-3=-7-3\\0\neq -10

So, this equation has no solution as both sides are not equal.

b) 15-2x=-7x

Solving:

15-2x=-7x\\Adding \ 2x \ on \ both \ sides\\15-2x+2x=-7x+2x\\15=-5x\\Divide \ both \ sides \ by -5\\x=-3

So, this equation has one solution

c) 7(y-3)=6y-21

Solving:

7(y-3)=6y-21\\7y-21=6y-21\\Adding \ -6y \ on \ both \ sides\\7y-21-6y=6y-21-6y\\y=-21+21\\y=0

So, this equation has one solution.

1. Write equation with no solution. 3-4x=-7-4x (check solution of a)

2. Write equation with one solution. 7(y-3)=6y-21 (check solution of c)

3. Write equation with infinite solution. 2x + 3 = x + x + 3

solving:

2x+3=2x+3

2x-2x+3=3

3=3

When both sides are equal, the equation has infinite solutions.

6 0
3 years ago
Tickets for a concert cost $10 each if you order them online, but you must pay a service charge of $8 per order. The tickets are
jekas [21]

Answer:

The system of equation to model the situation are:

C = 10t + 8

C = 12t

Step-by-step explanation: Complete question ( Let C be the total cost and let t be the number of tickets).

Ordering tickets online cost $10 plus additional service charge of $8.

Therefore total cost,C = 10t + 8

Buying tickets at the door cost $12

Therefore, total cost,C = 12t

The system of equation to model the situation are:

C = 10t + 8

C = 12t

3 0
3 years ago
See screenshot below/above
Fittoniya [83]

Answer:

x-int: (-2,0)

y-int: (0,1.333)

Step-by-step explanation:

8 0
3 years ago
Given the statement "If a line is horizontal, then it has slope equal to zero,” what is its contrapositive?
lara31 [8.8K]

Answer:

If a line does not have a slope of zero then it is not horizontal.

Step-by-step explanation:

Contrapositive:

If a = b then not b = not a.

7 0
3 years ago
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