Which is bigger 13% or 3/25

Mathematics

2 answers:

uysha [10]3 years ago

8 0

13% is bigger than 3/25. If you turn the 13% into a fraction it comes out to be 13/100.

To compare the two they have to have he same denominator. To make 3/25 have the denominator of 100 multiply the numerator and denominator by 4. You should get 12/100.

12/100<13/100

Natasha_Volkova [10]3 years ago

8 0

13% is bigger. If you make 13% a fraction it becomes 13/100. However you need the same denominator. 12/100. 13 is bigger than 12.

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faust18 [17]

Answer:

Step-by-step explanation:

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Also, the amount he can spend on magazines would be what is left after paying for lunch.

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Answer:

Part A:

$4 + x = y$

$0.5*4 + 1*x = 0.7*y$

$x = 8/3\ quarts\ of\ 100\%\ solution$

$y = 20/3\ quarts\ of\ 70\%\ solution$

Part B:

$x + y = 10$

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$x = 7$ and $y = 3$

Step-by-step explanation:

Part A:

The inicial concentration of the lemonade is 50%, and the volume is 4 quarts, and we will add x quarts of a lemonade with a concentration of 100%, so the total volume will be y, and the concentration will be 0.7, so we have that:

$4 + x = y$

$0.5*4 + 1*x = 0.7*y$

Using the value of y from the first equation in the second one, we have:

$2 + x = 0.7*(4 + x)$