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TiliK225 [7]
3 years ago
9

You need 320 mL of a 85% alcohol solution. On hand, you have a 60% alcohol mixture. How much of the 60% alcohol mixture and pure

alcohol will you need to obtain the desired solution?
You will need
____ mL of the 60% solution
and
_____ mL of pure alcohol.
Mathematics
1 answer:
Radda [10]3 years ago
5 0

Answer:

Step-by-step explanation:

If we let x = the amount of 5% solution and y = the amount of pure alcohol, we can set up that

.05x+y is the amount of alcohol in our resulting mixture, and x+y is the total amount in our resulting mixture (which we know is 380)

so we also know that:

(.05x+y)/380 = .6

If we simplify this we come up with:

.05x+y=228

and we know x+y=380

If we solve this as a system of equations, we will find that:

x=160 ml

y=220 ml

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Susan owns a home that is worth $128,318.74, a 2005 truck worth $10,615.00, and has investments that total $4,459.16. Susan owes
allochka39001 [22]

Answer:

Net worth is defined as:

Assets - Liabilities.

Assets are what you own.

Liabilities are what you have to pay.

So, home + truck + investments are assets.

Likewise, mortgage + student loans + credit cards are liabilities.

Doing the math, Susan's net worth is

Assets - Liabilities

$143,392.90 - $98,077.12 =

$45,315.78

Susan's net worth is $45,315.78

Good luck!

5 0
3 years ago
The constraint for the potential plant site 2 can be written as:
sdas [7]

Answer:

c. x21 + x22 + x23 less or equal than 2800 y2

Step-by-step explanation:

The plant has a maximum capacity of 2800 then the sum of all these operations must be equal to or less than 2800. The site of the plant has capacity constraint which needs to be determine through equation. The total capacity for the plant 2 is only 2800 the operation has to be distributed with keeping in mind the capacity limit.

4 0
3 years ago
Out of a total of 50 high school students, 14 plan to go to the basketball playoff game Friday night if there are 1450 students
Viefleur [7K]

Answer:

1131 students, is the best prediction.

Step-by-step explanation:

1450 divided by 50 = 29

50 - 14 = 36

36 x 29 = 1131

6 0
2 years ago
Given a discriminat of 36 how many solutions with the quadratic function have?
alexira [117]

Answer:

2

Step-by-step explanation:

So!

If the d (discriminant)

d > 0 Then 2 solutions

d = 0 Then 1 solution

d < 0 Then none

36 > 0 so 2 solutions

8 0
3 years ago
Read 2 more answers
Which number is between 0.5 and 8/9?
GalinKa [24]
To know which number is between 0.5 and 8/9, let us convert all numbers in the same form, the decimal form. 8/9 is equivalent to 0.89.
Option A is 0.29. Option B is 0.14. Option C is 0.21 and option D is 0.29. From the given choices above, THERE IS NO CORRECT ANSWER. None of the choices given fits to be a number that is between 0.50 and 8/9. Hence, the given choices may be incorrect.
7 0
2 years ago
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