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vfiekz [6]
3 years ago
13

You need a 70% alcohol solution. On hand, you have a 60 mL of of a 25% alcohol mixture. You also have 75% alcohol mixture. How m

uch of the 75% mixture will you need to add to obtain the desired solution ?
Mathematics
1 answer:
podryga [215]3 years ago
7 0

15ml to become more concentrated divide the amount

Step-by-step explanation:

You might be interested in
The formula for the nth term of the arithmetic sequence first term is 9 common difference is -2
Yanka [14]

Answer:

a_n = 9 - 2(n-1)

Step-by-step explanation:

Arithmetic sequence:

In an arithmetic sequence, the difference between consecutive terms is always the same, and is called common difference.

The nth term is given by the following equation:

a_n = a_1 + (n-1)d

In which a_1 is the first term and d is the common difference.

First term is 9 common difference is -2

This means that a_1 = 9, d = -2

So, the nth term is given by:

a_n = a_1 + (n-1)d

a_n = 9 + (n-1)(-2)

a_n = 9 - 2(n-1)

3 0
3 years ago
What does the PErron-Frobenius Theorem say, and why is it useful?
Alex787 [66]

Answer:

Perron–Frobenius theorem for irreducible matrices. Let A be an irreducible non-negative n × n matrix with period h and spectral radius ρ(A) = r. Then the following statements hold. The number r is a positive real number and it is an eigenvalue of the matrix A, called the Perron–Frobenius eigenvalue.

5 0
3 years ago
The airplane Li's family will be flying on can seat up to 149 passengers. If 96 passengers are already on the plane,
mash [69]

Answer:

D:)

Step-by-step explanation:

6 0
3 years ago
Multiply.
Vedmedyk [2.9K]

Answer:

Hello, There! i Noticed that your Question is 4.62 x 106 I'm Suggesting you mean 4.2 x 10 to the 6th power.

4,620,000 Is the Correct Answer My Friend! <3

_____________________________________________________

Hope this helps!

3 0
2 years ago
Match the labeled points on the graph to statements about their coordinates Two numbers with a sum of 2
Kamila [148]

Answer:

see explanation!

Step-by-step explanation:

Line N

  • A set of points where the coordinates of each point have a sum of 2

Line M

  • A set of points where the y-coordinates of each point is 10 less than its x-coordinate

Any coordinate on N has a sum of 2.

Any coordinate on M has a y that is 10 less than the x.

6 0
2 years ago
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