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rjkz [21]
2 years ago
6

Half of a class took Form A of a test, and half took Form B. Of the students who took Form B, 39% passed. What is the probabilit

y that a randomly chosen student took Form B and did not pass?
Mathematics
1 answer:
Gnom [1K]2 years ago
7 0

Answer: the answer would be 0.305

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Is the following conditional true or false? If it is true, explain why. If it is false, give a counterexample. If it is snowing
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That is true because Dallas, Texas in IN the U.S.
So, it is snowing in the United States if it is snowing in Dallas Texas
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Algebra 1 question, Please help. Picture attached below ^^
yarga [219]

Answer:

a

Step-by-step explanation:

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3 years ago
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Working her way through school, Kathy works two part-time jobs for a total of 23 hours a week. Job A pays $5.70 per hour, and Jo
trapecia [35]

Answer:

<u>Kathy worked 11 hours at job A and 12 hours at job B, the week she made US$ 146.70.</u>

Step-by-step explanation:

1. Let's review all the information given for solving this question:

Rate per hour of Job A = US$ 5.70

Rate per hour of Job B = US$ 7.00

Earnings received by Kathy during the week = US$ 146.70

Total time worked by Kathy during the week = 23 hours

Hours at job A = x

Hours at job B = 23 -x

2. Let's find how many hours Katy worked at each job:

This is the equation that we'll use:

5.70x + 7 (23 - x) = 146.70

5.70x + 161 - 7x = 146.70

- 1.3x = 146.70 - 161 (Subtracting 161 at both sides)

-1.3x = - 14.30

1.3x = 14.3 (Multiplying by - 1 at both sides)

x = 14.3/1.3 = 11 (Dividing by 1.3 at both sides)

<u>Kathy worked 11 hours at job A and 12 hours at job B.</u>

3. Proof of x = 11

5.70 x + 7 (23 - x) = 146.70

5.70 (11) + 7 (23 - 11) = 146.70

62.70 + 7 (12) = 146.70

62.70 + 84 = 146.70

146.70 = 146.70

<u>The value of x = 11 is correct.</u>

Note. I provided the same answer to question 13954115.

3 0
2 years ago
How do you solve this system , y=1/2x-4 and y=-2x+1 by graphing
mart [117]

Answer:

x=2

y=-3

Step-by-step explanation:

we have

y=\frac{1}{2}x-4 ----> equation A

y=-2x+1 ----> equation B

Solve the system by graphing

Remember that the solution of the system of equations by graphing is the intersection point both lines.

using a graphing tool

The intersection point is (2,-3)

therefore

The solution is

x=2

y=-3

7 0
3 years ago
The difference of f and five times g is the same as 25 minus f
Nat2105 [25]

(5xg)-f=25-f F= rly anything  g=5

8 0
3 years ago
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