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2 years ago

On a road map, the distance between two cities is 3.5 inches. If 1 inch represents

Mathematics

1 answer:

kicyunya [14]2 years ago

7 0

Answer: 175
You will take 50 and times it by 3.5

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A clock store sold a certain clock to a collector for 20 percent more than the store had originally paid for the clock. When the

olga nikolaevna [1]

Answer: Option (A)

Step-by-step explanation:

Let the original price of the clock be "x "

The clock is then resold to a collector = x + 20% of "x "

= x + 0.2x

= 1.2x

Now, the shop re-buy the clock at a price = $Reselling\ price \times 0.50$

$= 1.2x \times 0.5$

= 0.6x

Therefore,

Original Cost - Buy-Back price = $100

⇒ x - 0.6x = 100

⇒ x = 250

Hence , the selling price of the clock for the second time is

$= 1.8\times0.6\times250$

= $270

7 0

3 years ago

An office building rents for $40,000 the first year, then increases by 0.5% each year. Use summation notation to represent the t

Sholpan [36]

Given the initial rent is $40000, and the rent is increased by 0.5% each year, the rent in the third year will be given by:
FV=P(1+r)^n
FV=40000(1.05)^n
Thus the answer for the sum of payments for 3 years will be:
The summation is 1.05 raised to n years times $40000, where the years is from 0 to 3.

4 0

3 years ago

Read 2 more answers

Brad says that if the second number is 125%of the first number then the first number must be 74%of the second number is he corre

vaieri [72.5K]

Dulu xhzuzrtizzistmYersuussutitzHezy

5 1

3 years ago

7. Reduce the fraction 36/48 to its lowest terms. A. 1 12/48 B. 3/4 C. 1 1/4 D. 6/8

Pie

The answer is B. 3/4

36/48 both share the common factor of 12, divide 12 by the numerator and denominator to get the simplified fraction, 3/4

3 0

3 years ago

Read 2 more answers

Henry has collected data to find that the typing speeds for the students in a typing class has a normal distribution. What is th

Mekhanik [1.2K]

Answer: 0.8413

Step-by-step explanation:

Given : Henry has collected data to find that the typing speeds for the students in a typing class has a normal distribution.

Mean : $\mu=47$

Standard deviation : $\sigma= 4$

Let x be the random variable that represents the typing speeds for the students.

The z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 51

$z=\dfrac{51-47}{4}=1$

Using the standard normal distribution table ,the probability that a randomly selected student has a typing speed of less than 51 words per minute :-

$P(x$

Hence, the probability that a randomly selected student has a typing speed of less than 51 words per minute = 0.8413

8 0

3 years ago