2 years ago

Please help me thank you

1 answer:

4 0

The answer to the first one is 9√5

the answer to the the second is √5+7⋅√5=8√5

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Daniel [21]

Y = 6
5y = 5 x y
5y = 5 x 6
5y = 30.
It is C. 30.

Hope This Helps You!
Good Luck Studying :)

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2 years ago

Which is the set of all y-values or the outputs? Range Function Relation Domain

alina1380 [7]

Answer:

Step-by-step explanation:

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3 years ago

How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

kolbaska11 [484]

Answer:

120 liters of 60% alcohol solution is needed

Step-by-step explanation:

Let's assume

x liters of 60% alcohol solution is added

so, we get solution as

$=\frac{60}{100}\times x$

$=0.6x$

we are given

40 liters of a 20% alcohol solution is

$=40\times\frac{20}{100}$

$=8$

so, total alcohol solution is

$=8+0.6x$

now, we can find total solutions

total solutions is

$=x+40$

now, it is making 50% solution

so, we get

$\frac{8+0.6x}{x+40} =\frac{50}{100}$

now, we can solve for x

$\left(8+0.6x\right)\cdot \:100=\left(x+40\right)\cdot \:50$

$800+60x=50x+2000$

$10x=1200$

$x=120$

So,

120 liters of 60% alcohol solution is needed

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2 years ago

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Sidana [21]

......................

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2 years ago

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ahrayia [7]

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