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Triss [41]
3 years ago
5

Kayla has taken an online boating safety course and is completing her end-of-course exam. As she answers each question, the prog

ress bar at the bottom of the screen shows what portion of the test she has finished. She has just completed Question 12, and the progress bar shows she is 40% complete. How many total questions are on the test?
Mathematics
1 answer:
Arte-miy333 [17]3 years ago
6 0
Hey there :),Good question!
If question 12=40%
Lets determine how many questions fill 20% of the progress bar
Take 12 and divide by 2 to get half of the questions
12/2=6
6 questions equal 20% progress bar
100/20= 5
Next multiply 6 and 5 to find the total number of questions:
6×5=30
The answer is 30 Total Questions are on the test

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Ainat [17]
So,

Since this is independent probability, the probability of the event above occurring is:
(probability\ of\ heads)(probability\ of\ even\ no.)

First, the probability of landing on heads.
\frac{1}{2}

Now, the probability of rolling an even number.
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Plug it into the equation.
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The correct option is C.
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3 years ago
Write and solve a story problem for each method you can use to find decimal sums and differences.
Pavlova-9 [17]

Answer:

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Step-by-step explanation:

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3 years ago
Solve the linear programming problem.
larisa [96]

Answer:

1. Objective function is a maximum at (16,0), Z = 4x+4y = 4(16) + 4(0) = 64

2. Objective function is at a maximum at (5,3), Z=3x+2y=3(5)+2(3)=21

Step-by-step explanation:

1. Maximize: P = 4x +4y

Subject to: 2x + y ≤ 20

x + 2y ≤ 16

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Plot the constraints and the objective function Z, or P=4x+4y)

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Answer: Objective function is a maximum at (16,0),

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2. Maximize P = 3x + 2y

Subject to x + y ≤ 8

2x + y ≤ 13

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Plot the constraints and the objective function Z, or P=3x+2y.

Push the objective function to the limit in the increase + direction permitted by the feasible region to find the maximum intersection.

Answer: Objective function is at a maximum at (5,3),

              Z = 3x+2y = 3(5)+2(3) = 21

7 0
3 years ago
2 x -1^2 + 1<br><br> please show me how to get to the answer of 1
OLga [1]

Answer:

-1

Step-by-step explanation:

2 × (-1²) + 1 = 2 × (-1) + 1 = -2 + 1 = -1

7 0
2 years ago
Read 2 more answers
21 = r -5<br> =<br> HOW DO WE SLOVE THIS
amid [387]

Answer:

R = 26.

Step-by-step explanation:

The way to solve this is to add 5 to both sides.

8 0
2 years ago
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