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2 years ago

If the ratio of blue shirts to green shirts is to 5 to 12 with a total of 340 shirts, how many of the shirts are blue?

Mathematics

1 answer:

k0ka [10]2 years ago

6 0

Answer:

100 blue shirts

240 green shirts

Step-by-step explanation:

Multiply both the 5 and the 12 by 20.

5:12

100:240

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A catalog company that receives the majority of its orders by telephone conducted a study to determine how long customers were w

lana66690 [7]

Answer: 0.3679

Step-by-step explanation:

The cumulative distribution function for exponential distribution is :-

$P(x)=1-e^{-\lambda x}$ , where $\lambda$ is the mean of the distribution.

Given : A mean length of waiting time equal $2.8$ minutes

i.e. Mean number of calls answered in a minute $\lambda=\dfrac{1}{2.8}$

Now, the proportion of callers is put on hold longer than 2.8 minutes is given by :_

$P(x>2.8)=1-P(x$

Hence, the proportion of callers is put on hold longer than 2.8 minutes = 0.3679

8 0

3 years ago

Sasha is filling a rectangular box with ribbon and wants to know the amount of space in the box. A prism has a length of 12 inch

lbvjy [14]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

After a bride has interviewed 7 DJs to play at her wedding, her fiance tells her she needs to narrow it down to 4 DJs. In how ma

Alex17521 [72]

Answer:

840

Step-by-step explanation:

Given

$DJs = 7$

$To\ pick = 4$

Required

Determine the number of rankings

The term "ranking" as used in this question implies permutation and the required is calculated using:

$^nP_r = \frac{n!}{(n-r)!}$

Where

$n = 7$

$r = 4$

So:

$^nP_r = \frac{n!}{(n-r)!}$

$^7P_4 = \frac{7!}{(7-4)!}$

$^7P_4 = \frac{7!}{3!}$

$^7P_4 = \frac{7 * 6 * 5 * 4 * 3!}{3!}$

$^7P_4 = 7 * 6 * 5 * 4$

$^7P_4 = 840$

<em>Hence, number of ranking is 840</em>

7 0

2 years ago

if a town with a population of 500 doubles in size ever 9 years, what will the population be 36 years from now?

s344n2d4d5 [400]

The population of the town in 36 years would be 8000.

<h3>What would be the population of the town in 36 years?</h3>

The formula that can be used to determine the town's population is:
FV = P (1 + r)^n

Where:

FV = Future value
P = Present value
R = rate of growth = 100%
N = number of years = 36/9 = 4

500 x 2^4 = 8000

To learn more about future value, please check: brainly.com/question/18760477

4 0

2 years ago

For the class of 2013's prom Norman's dress shop sold cheaper dresses for $90 each and more expensive dresses for $140 each. The

Tema [17]

Answer:

Number of cheaper dresses sold is 35

Number of expensive dresses sold is 15

Step-by-step explanation:

Given:

Cost of cheaper dresses = $90

Cost of expensive dresses = $140

Total cost of the dresses = $5250

To Find:

Number of cheaper dress = ?

Number of expensive dress = ?

Solution:

Let

The number of cheaper dresses be x

The number of expensive dresses be y

(Number of cheaper dresses X cost of cheap dress) + (Number of Expensive dresses X cost of expensive dress) = $5250

$x \times90 +y \times 140 = 5250$ = $5250

It is given that the 20 more of the cheaper dresses than the expensive dresses is sold

So,

number of cheaper dress = 20 + number of expensive dress

x = 20 + y---------------------------------------(1)

$(20+y) \times90 +y \times 140 = 5250 = 5250$

$(20 \times 90 +y\times 90) +y \times 140= 5250$

$1800 + 90y+ 140y = 5250$

$1800 + 230y = 5250$

$230y =5250 -1800$

$230y = 3450$

$y = \frac{3450}{230}$

y = 15

Substituting y in (1)

x = 20 +15

x= 35

5 0

3 years ago