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nataly862011 [7]
3 years ago
9

Twenty-four students took a test. Fourteen students earned an A and 8 students earned a B. A student will be randomly chosen. Wh

at is the probability that the student earned an A on the last test? Enter your answer as a fraction, in simplest form, in the box.
Mathematics
1 answer:
Fofino [41]3 years ago
8 0
Answer is 7/12 I know it is because, well I just know it is 
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A salesperson earns a flat monthly salary, plus a percentage of the items sold. Which of the following functions could model the
Sergeu [11.5K]
Option C. y = 0.06x + 1200

In that function 1200 represents the flat monthly salary, x is the value of the items sold and 0.06 means that teh percentage is 6%.
5 0
2 years ago
What is the length of XPY in terms of pi?
Elis [28]
Circumference of a circle = 2πr

Circumference of the whole circle= 2π(30) = 60π

360 - 90 = 270 

Length XPY = 270/360 x 60π = 45π

Answer: 45π m
5 0
3 years ago
Read 2 more answers
A conditional statement is logically equivalent to a biconditional statement. True False pls help i have a test and i was absent
andreyandreev [35.5K]

Answer:

false.

Step-by-step explanation:

A conditional statement is something like:

If P, then Q.

This means that if a given proposition P is true, then another proposition Q is also true.

An example of this is:

P = its raining

Q = there are clouds in the sky.

So the conditional statement is

If its raining, then there are clouds in the sky.

A biconditional statement is:

P if and only if Q.

This means that P is only true if Q is true, and Q is only true if P is true.

So, using the previous propositions we get:

Its raining if and only if there are clouds in the sky.

This statement is false, because is possible to have clouds in the sky and not rain.

(this statement implies that if there are clouds in the sky, there should be rain)

Then we could see that for the same propositions, the conditional statement is true and the biconditional statement is false.

Then these statements are not logically equivalent.

The statement is false.

3 0
2 years ago
A bookmark has an area of 14 square centimeters and a perimeter of 18 centimeters. What are the dimensions of the bookmark?
Naily [24]

Answer:

2 x 7

Step-by-step explanation:

a * b = 14

2a + 2b = 18

(a * b)/b  = 14/b Dividing both sides by b

a = 14/b

Substitute a in the perimeter equation

2(14/b) + 2b = 18

28/b + 2b = 18

2b - 18 + 28/b = 0

Multiply both sides by b

2b^2 - 18b + 28 = 0

Divide both sides by two

b^2 - 9b + 14 = 0

The Factors of 14 include -2 and -7 which add up to -9

(b - 2) * (b - 7) = 0

This has two answers because b can be either the side that is 2 long or 7 long, so there's no need to go back and solve for a.

2 x 7

4 0
2 years ago
Problem 5.) Andre paid $13 for 3 books. Diego bought 12 books priced at the same rate. How much did Diego pay for the 12 books?
balandron [24]

Answer:

$52

Step-by-step explanation:

3 books → $13

1 book → $13/3

12 books → $13/3 x 12 = $52

6 0
2 years ago
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