3 years ago

CRIMINAL JUSTICE

Mathematics

1 answer:

bekas [8.4K]3 years ago

3 0

THE ANSWER IS FALSE (but don't quote me on that)<span />

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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

4 0

3 years ago

A box of candies has 14 pieces in total. If 2 of the pieces are strawberry flavored what is the ratio of the other flavors to th

creativ13 [48]

Answer:

12:2 or 6:1

Step-by-step explanation:

5 0

3 years ago

What is the slope of the line that passes through the points (3,1) and (-2,5)

sweet-ann [11.9K]

The gradient formula is:

m = y2 - y1/ x2 - x1

> m = 5 - 1 /-2 -3
>> m = 4/-5x

8 0

3 years ago

Plz help me with this problem!

sergiy2304 [10]

Answer:

It's 99.00900

Step-by-step explanation:

Hope it helps you.......

7 0

3 years ago

A line's y-intercept is 3, and its slope is 1.

8090 [49]

Answer:

Standard form for straight line

y = m x + b

If x = 0 then y = b = 3

y = m x + 3

Since m is the slope the requested equation is y = x + 3

3 0

3 years ago

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