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fredd [130]
3 years ago
13

PLEASE!!!!!! Help ASAP!!!!!

Mathematics
1 answer:
denis23 [38]3 years ago
7 0
Heath needs to end up with 10L of solution, 

of which 9L is bleach. So let m = liters of 20% 

solution needed. Then .20m liters of that are bleach. 

He must then add p liters of bleach to make 

a total of 10 L. That is, p + m = 10. So the system is 

m + p = 10, .20m + p = 9. Solving, 

<span>m = 1.25 L 20% solution, and thus p = 8.75 L bleach.</span>
You might be interested in
Show that the equation x^3+6x-5=0 has a solution between x=0 and x=1
Mnenie [13.5K]

Answer:

Since the value of f(0) is negative and the value of f(1) is positive, then there is at least one value of x between 0 and 1 for which f(x) =0.

Step-by-step explanation:

The equation f(x) given is:

f(x) = x^3+6x-5

For x = 0. the value of the expression is:

f(0) = 0^3+0-5\\f(0) = -5

For x = 1, the value of the expression is:

f(1) = 1^3+6-5\\f(1)=2

Since the value of f(0) is negative and the value of f(1) is positive, then there is at least one value of x between 0 and 1 for which f(x) =0.

In other words, there is at least one solution for the equation between x=0 and x=1.

6 0
3 years ago
(6x+5)-(3x+10)<br> how to solve this question?
Sveta_85 [38]

Answer:

3x-5

Step-by-step explanation:

(6x+5)-(3x+10) = 6x+5-3x-10

                       = 3x-5

4 0
2 years ago
Read 2 more answers
How are 12 fl oz equivalent to 335 ml
Mazyrski [523]
The question asks us to find that 12 fl oz is equivalent to 335 ml. Then we have to either convert the milliliter to oz or vice-verse. In this case we will convert 12 fl oz to milleter and check if it comes to 335 ml.
Now we already know that
1 oz = 29.57 ml
Then
12 oz = (29.57 * 12) ml
          = 354.84 ml
         = 355 ml
So we see that 12 oz is not equal to 335 ml but it is almost equivalent to 335 ml.
4 0
3 years ago
Brad wants to open a new savings account. He finds one that returns 3% on his investment each year.
Damm [24]

Answer:

1.03x

Step-by-step explanation:

1 year b would be the inital investment added with interest

i believe this is the equation

b = x + r(x)= (1 + r)x

and since it says 3% each year we know its 0.03 (r)

and when you solve it out you get that answer

4 0
3 years ago
Read 2 more answers
What is the answer??
algol [13]
Your answers will be: 

x= 0.44

and 

x= -1.84
4 0
3 years ago
Read 2 more answers
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