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Amanda [17]
3 years ago
11

Suppose 3 pints of a 13% alcohol solution is mixed with 7 pints of a 70% alcohol solution. What is the concentration of alcohol

in the new 10-pint mixture
Mathematics
1 answer:
vagabundo [1.1K]3 years ago
4 0

Answer:

Ududu

Step-by-step explanation:

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Find (f + g)(x). f(x) = 1/x<br> g(x)= x2+2x-5
jok3333 [9.3K]

Answer:

B

Step-by-step explanation:

To find (f+g)(x) literally add the two expressions together. The expressions become:

(f+g)(x) = \frac{1}{x} + x^2+2x-5

The solution is b.

3 0
4 years ago
Read 2 more answers
What is the solution to the system of equations? y = –3x – 2 5x + 2y = 15 (–40, 19) (–19, 55) (19, –40) (55, –19)
kobusy [5.1K]

Step-by-step Answer:

What is the solution to the system of equations?

y = –3x – 2 ..............(1)

5x + 2y = 15..............(2)

Substitute (1) in (2) to give

5x + 2(-3x-2) = 15

5x-6x-4 = 15

-x-4=15

solve for x:

-4-15 = x

x=-19

Now substitute x=-19 into equation (1)

y = -3x-2 = 57-2 = 55

Therefore the solution is (-19, 55)

5 0
3 years ago
What is the length and width of the rectangle?
gladu [14]

Answer:

A rectangle is a 2-dimensional polygon with four sides,

Step-by-step explanation:

four angles, and four vertices. A rectangle is composed of two sides: length (L) and width (W). The length of a rectangle is the longest side, whereas the width is the shortest side. The width of a rectangle is sometimes referred to as the breadth (b).

3 0
3 years ago
An elevator has a placard stating that the maximum capacity is 1610 lb---10 passengers.​ So, 10 adult male passengers can have a
Yuri [45]

Answer:

The probability is "0.6406", this elevator isn't appear to be​ safe

Step-by-step explanation:

The given values are:

Mean,

\mu=165

Standard deviation,

\sigma=35

Number of male passengers,

n = 10

Now,

⇒ z=\frac{161-165}{\frac{\sigma}{\sqrt{10} } }

      =\frac{161-165}{\frac{35}{\sqrt{10} } }

hence,

The probability will be:

= P(\bar {x}>161)

= P(z > -0.3614)

= 0.6406

3 0
3 years ago
Help please
aev [14]

1. 10,000 possible numerical codes.

(10 to the power of four)

2. 39,916,800 ways to arrange them.

(11!)

3. 6,250,000 different plates.

(25 x 25 x 10 x 10 x 10 x 10)

7 0
4 years ago
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