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anygoal [31]
3 years ago
6

2ax-b=cx+d solve for x​

Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0

Answer:

x = (d + b) / (2a - c)

Step-by-step explanation:

2ax-b = cx+d

2ax - cx = d + b

x (2a-c) = d + b

x = (d + b) / (2a - c)

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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}

=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
At the beginning of a basketball season, the Panthers won 20 games out of 80 games. At this rate, how many games will they win i
balu736 [363]
They will win 25 games in 100 game season at that rate.Since they win 5 games out of every 20.

The answer is 25
6 0
2 years ago
Jasmine is traveling at 45 miles per hour. At that same rate, how long will it take her to travel 135 miles?
Tanzania [10]

Answer:the answer is 2 it will take jasmine 3hrs to travel 135 miles

Step-by-step explanation:

3 0
3 years ago
Which of the following is the rational exponent expression of fourth root of f?
Ivanshal [37]
That would be  f^1/4.

1/4 being the rational exponent
8 0
3 years ago
Read 2 more answers
A local pet shelter plans to sell pet calenders to raise money for food and other supplies. Anyone can submit a pocture of his o
Mama L [17]

Answer:

Step-by-step explanation:

We could consider the linear model of cost assumed that:

C(x) = \frac{2250}{50}x when x is the number of calendars printed.

5 0
3 years ago
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