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serious [3.7K]
3 years ago
12

You find a deck of cards and know that the deck has too many clubs and spades in it. The deck has 59 cards.

Mathematics
2 answers:
Harrizon [31]3 years ago
7 0
(13/59)(c/58)=117/1711

13c/3422=117/1711

13c=234

c=18

So there are 18 clubs instead of 13 meaning that there is an extra 5 clubs in the deck.

Since there were 59 cards, there was 7 extra cards in all.  The 7 extra minus the 5 extra clubs leaves 2 extra spaces.

So there were two extra spades in the deck.
Lostsunrise [7]3 years ago
5 0

Answer:

it's 2

Step-by-step explanation:

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What is the ratio of 150 and 175
tiny-mole [99]
Answer 6:7

explanation:
5 0
3 years ago
Which number produces a irrational number when added 0.25
Helen [10]
I think the easiest way to think about this is to put 0.25 into fractional form. 0.25 = 1/4 because 4 divided into 1 = 0.25

So 1/4 added to 2/9 will give us a fraction (rational number). Of course to determine what the fraction is, we have to get a common denominator.
(In case you wanted to know what that rational number is: The least common denominator would be 36. So changing 1/4 by multiplying top and bottom by 9 gives 9/36 and changing 2/9 by multiplying top and bottom by 4/4 gives 8/36 and adding 9/36 to 8/36 gives 17/36 - a rational number.)
6 0
3 years ago
A boat travels for 4 hours at a constant speed of 35.25 km/h.
Black_prince [1.1K]
Again set a proportion
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The answer is C.
3 0
3 years ago
Read 2 more answers
David sold a bicycle at a profit of 10% had he sold it for rupees 150 more, the profit would have been 15%. find the cost price
dlinn [17]

Answer:

The cost price was 3,000 rupees.

Step-by-step explanation:

A profit is an excess of the cost price you bought the bicycle at.

The original cost price as a decimal = 1.0

10% profit in excess of original cost as a decimal = 1+ 0.10 = 1.10

15% profit in excess of original cost as a decimal = 1+0.15= 1.15

And if he  sold the bicycle at 150rupees more,  he makes 15% profit;

The differential percentage = 15%-10% = 5% or 0.05

If 5% = 150 rupees

then 100% = (100*150)/5

= 15,000/5

= 3,000 rupees

<u>To verify;</u>

<em>At 15% profit it would be = 3000*1.15 =3,450 rupees</em>

<em>At 10% profit , it would be = 3000* 1.10 = 3,300 rupees</em>

<em>Difference = 3,450 -3,300 = 150 rupees</em>

Therefore, the cost price was 3,000 rupees.

3 0
3 years ago
The price of an item has been reduced by 15%. The original price was $17
g100num [7]

Answer:

17/100*85= $14.45

Step-by-step explanation:

Divide by 100 and multiply by (100-15) 85 to get the result.

5 0
3 years ago
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