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3 years ago

By selling a radio with 12% profit , the profit

Mathematics

1 answer:

Setler79 [48]3 years ago

5 0

Answer:

the Radio was 52.8%

Step-by-step explanation:

60-12%=52.8

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How many arrangements can be made using 2 letters of the word HYPERBOLAS if no letter is to be used more than once?

alisha [4.7K]

Answer:

90 arrangements

Step-by-step explanation:

Since there are no repititions of letters, there are unique 10 letters in total.

THe number of arrangements would be 2 permutation 10. We need the formula for permutation. That is:

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

Now, n = 10 [total] and r is 2, so we have:

$nPr=\frac{n!}{(n-r)!}\\\\_{10}P_{2}=\frac{10!}{(10-2)!}\\=\frac{10!}{8!}\\=\frac{10*9*8!}{8!}\\=10*9\\=90$

So, there can be 90 arrangements

3 0

3 years ago

What is the answer for 5-2+7x6-2?

sergiy2304 [10]

Answer: 43

Step-by-step explanation:

5-2+7x6-2

3+42-2

45-2

8 0

3 years ago

Nelda drove 315 kilometers and used 35 liters of gasoline. Her car averaged how many kilometers per liter of gas?

Inessa [10]

Going 315 km uses up 35 liters of gasoline

On average, 1 liter of gasoline can travel the number of kilometers:

315 : 35 = 9 liters of gasoline

6 0

2 years ago

Only square matrices have multiplicative identities. True or false

Alex

Answer:

true.

Step-by-step explanation:

8 0

3 years ago

Emilio cay type 850 words in 17 minutes. How many words can he type in one hour?

Nutka1998 [239]

Answer:

3,000 words

Step-by-step explanation:

we know that

Emilio cay type 850 words in 17 minutes

Remember that

$1\ h=60\ min$

using proportion

Find out how many words can Emilio type in 60 minutes (one hour)

Let

x ---> the number of words

$\frac{850}{17}\ \frac{words}{minutes} =\frac{x}{60}\ \frac{words}{minutes}\\\\x=60(850)/17\\\\x= 3,000\ words$

3 0

3 years ago