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3 years ago

If 3/5 times x equals 12 then what is x

Mathematics

2 answers:

vovikov84 [41]3 years ago

8 0

Answer:

Step-by-step explanation:

12 divided by 3/5 is equal to 20

EleoNora [17]3 years ago

7 0

The answer to the question is 20.

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3 years ago

jarptica [38.1K]

Answer:

3 gallons

Step-by-step explanation:

Let

x ----> the amount of pure acid (100% solution) in gallons

Remember that

$100\%=100/100=1$

$20\%=20/100=0.20$

$60\%=60/100=0.60$

we know that

$(1)(x)+(0.20)(3)=(0.60)(x+3)$

solve for x

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$x-0.60x=1.80-0.60\\0.40x=1.20\\x=3\ gal$

therefore

3 gallons of pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution

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3 years ago

-2

morpeh [17]

Answer:

-104

вот правильный ответ

5 0

3 years ago