2 years ago

What percent of 78 = 39?

Mathematics

1 answer:

S_A_V [24]2 years ago

3 0

39/78 = .5 = 50%
...................

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If I want to buy a pair of sunglasses and the original price is $120, how much will I pay if they are 50% off? What if they were

gogolik [260]

Answer:

$60, $90

Step-by-step explanation:

Amount paid when 50% off

=$ 120 - 50/100 * 120 = $ 120 - $60 = $60

Amount paid when 25% off

=$ 120 - 25/100 * 120 = $ 120 - $30 = $90

4 0

3 years ago

The employees of a company were surveyed on questions regarding their educational background (college degree or no college degre

taurus [48]

Answer: D) 0.733.

Step-by-step explanation:

Let C denotes the number of employees having college degree and S denote the number of employees are single.

We are given ,

Total = 600 , n(C)=400 , n(S)=100 , n(C∩S)=60

Then,

$n(C\cup S)=n(C)+n(S)-n(C\cap S)\\\\=400+100-60=440$

Now, the probability that an employee of the company is single or has a college degree is

$P(C\cup S)=\dfrac{n(C\cup S)}{\text{Total}}\\\\=\dfrac{440}{600}=0.733333333\approx0.733$

Hence, the probability that an employee of the company is single or has a college degree is 0.733

8 0

2 years ago

Which equation has a variable Isolated? (PUT NO SPACES WHEN TYPING THE EQUATION y=4x and 3x+2y=55

andrew11 [14]

Answer:

X is five, 100% :D

Step-by-step explanation:

5 0

2 years ago

Solve for the variable in the following proportion. 5/25 = m/125

Arisa [49]

The solution is 5*125/25 = 25
m=25

7 0

2 years ago

Read 2 more answers

A farmer needs to fence a rectangular piece of land.She wants the length of the field to be 55 feet longer than the width. If sh

myrzilka [38]

Call the width ' W '.
Then the length is W + 55

Perimeter (distance all around) = W + (W+55) + W + (W+55) = 4W + 110

4W + 110 = 1,310

4W = 1,200

W = 300-ft

Length = W + 55 = 355-ft

6 0

2 years ago