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3 years ago

So i need some help about percentages.

Mathematics

2 answers:

Lisa [10]3 years ago

7 0

The answer is 12. if you need help, do 60•.2

Goryan [66]3 years ago

3 0

Answer:

20% of 60 is 12.

Step-by-step explanation:

First Method ;

20% of 60 = 20/100 x 60

= 12

Second Method :

1% of 60 = 60/100

= 0.6

20% of 60 = 1% of 60 x 20

= 0.6 x 20

= 12

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What is the value of y when y=10 and 1/4x+10-2y=3y

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Inspecting Restaurants How many different ways can a city health department inspector visit restaurants in a city with restauran

tankabanditka [31]

Answer:

252 ways

Step-by-step explanation:

The missing details are:

$n = 10$ --- total restaurants

$r = 5$ --- restaurants to visit

Required

The number of ways to perform the visitation

The question is an illustration of combination;

So, we have:

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

This gives:

$^{10}C_5 = \frac{10!}{(10 - 5)!*5!}$

$^{10}C_5 = \frac{10!}{5!*5!}$

Expand

$^{10}C_5 = \frac{10*9*8*7*6*5!}{5!*5*4*3*2*1}$

Cancel out 5!

$^{10}C_5 = \frac{10*9*8*7*6}{5*4*3*2*1}$

$^{10}C_5 = \frac{30240}{120}$

$^{10}C_5 = 252$

4 0

3 years ago

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egoroff_w [7]

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3 years ago

6(5+7)-4.8 pls help....................

pashok25 [27]

Answer:

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Step-by-step explanation:

5 + 7 = 12

6 * 12 = 72

72 - 4.8 = 67.2

7 0

3 years ago

Read 2 more answers