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Ber [7]
3 years ago
7

Write a rational equation that relates the desired percentage to the amount of % acid solution that needs to be added to liter o

f % acid solution to make a blend that is % acid, where < < . What is a reasonable restriction on the set of possible values of ? Explain your answer.
Mathematics
1 answer:
mart [117]3 years ago
8 0

This question is incomplete

Complete Question

Write a rational equation that relates the desired percentage p, to the amount A of a 30% solution that needs to be added to 1 liter of 10% acid solution to make a blend that is p% acid, where 0<p<100 . What is a reasonable restriction on the set of possible values of ? Explain your answer.

Answer:

100(0.1 + 0.3A)= (1 + A) P

Step-by-step explanation:

A of a 30% solution that needs to be added to 1 liter of 10% acid solution to make a blend that is p% acid,

Hence,

10% of 1 + 30% of A = p%(1 + A)

0.10 + 0.3A = (p/100)(1 + A)

Divide both sides by 1 + A

0.1 + 0.3A/ 1 + A = p/100

Cross Multiply

100(0.1 + 0.3A) = 1 + A(p)

From the above calculation, we can see that, the blend that would be formed is not lower than 10% or greater than 30%

10% < p< 30%

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Help please show work and fast ........
katrin2010 [14]
<span>BC = 13
AC = 10
BD = x

We want to find what x is. You know what we can do? We can use the PYTHAGOREAN THEOREM. The PT states:

a^{2} + b^{2} = c^{2}

But we need to know DC in order to use the PT. But in Geometry there’s this theorem (I forgot sorry!) that states that BD divides ABD and CBD. Thus DC = 5 (half).
Pythagorean Theorem:

13^{2} - 5^{2} =  BD^{2}
169 - 25 = 144
\sqrt{144} = 12
BD = 12.

Hope this helps!</span>
6 0
4 years ago
Help me with this, please
olga nikolaevna [1]

Answer:

Correct Answer: Option A

Step-by-step explanation:

cos(x + 25o) = sin 45o

using cos θ = sin(90 - θ)

cos(x + 25o) = cos(90 - 45)

cos(x + 25o) = cos 45

x + 25 = 45

x = 45 - 25

x = 20o

 

Hope it helps ♡^▽^♡

5 0
4 years ago
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castortr0y [4]
The answer is C- Berthas cake weighs 463 grams more than Jessups cake
3 0
2 years ago
Determine equation of a line passing through a point (5,-3) with and undefined slope
avanturin [10]
Slope is calculate using the following equation:
slope = (y2-y1) / (x2-x1)
since the slope is undefined, therefore, the denominator is equal to zero, which means that x2 = x1.

Based on this, the only curves with undefined slopes are the curves with equation: x = constant

Therefore, <span>equation of a line passing through a point (5,-3) with and undefined slope is x = 5</span>
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3 years ago
Josh went fishing and caught 21 fish. Of those fish,2/3 weree bass and the remaing fish were trout. How many trout did josh catc
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Answer:

7

Step-by-step explanation:

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6 0
4 years ago
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