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Bingel [31]
2 years ago
14

How many liters of a 10% alcohol solution must be mixed with 40 liters of a 50% alcohol

Mathematics
1 answer:
inn [45]2 years ago
5 0

Answer:

13 \frac{1}{3}

Step-by-step explanation:

20+.1x=.4\left(40+x\right)

x=40/3 = 13 \frac{1}{3}

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Help me I need help fast
hoa [83]

Answer:

1. angle b is equal to 47 as it is a corresponding angle to the angle that is 47

2) ASA, 3) SSS 4) ?? not quite sure, it's either AAS or cannot be determined...

5) AAS 6) SAS

Step-by-step explanation:

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6 0
2 years ago
Let (-5,-4) be a point on the terminal side of (theta). Find the exact values of cos, csc, and tan.
Rasek [7]

The exact values of the trigonometric identities cos, csc and tan as required in the task content are; -√41/5, -√41/4 and 4/5 respectively.

<h3>What are the exact values of cos, csc and tan as required in the task content?</h3>

It follows from above that the terminal side of the angle theta as described is on the point with coordinates (-5, -4).

Hence, the points spans 5 units leftwards and r units downwards on x and y axis respectively.

Hence, the length of the line that describes the angle by Pythagoras theorem is;

h = √((-4)² + (-5)²)

h = √41.

Hence, it follows from trigonometric identities that;

Cos (theta) = -5/√41.

Csc (theta) = -√41/4

Tan (theta) = 4/5

Read more on trigonometric identities;

brainly.com/question/24496175

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3 0
1 year ago
The vertex angle of isosceles triangle is 110. what are the measures of the base angles
alexgriva [62]
Two sides are equal in an isosceles triangle. This means that the angle both sides make with the third side must be the same. Since the angles in a triangle add up to 180°, you can subtract 110° from 180° and divide your answer by two. The resulting number will be the measure of each of the two unknown angles
3 0
2 years ago
Ruben bought 2 large popcorn buckets and 4 small drinks for $20. Lucia bought 2
Korolek [52]

Answer:

4$ for large 3$ for a small

Step-by-step explanation:

7 0
3 years ago
Beth has 250 comic books in her collection. She begins to sell 20 of them each week. Martin has 80 comic books in his collection
guapka [62]

Answer:

250 - 20 < 80 + 15x

Step-by-step explanation:

Given that

Beth has 250 books and 20 books sold each week

While on the other hand, Martin has 80 books and sell 15 books each week

Let us assume each week be x

Now the equations are  

Beth         250 - 20x            

Martin       80 + 15 x

Now the inequality would be

250 - 20 < 80 + 15x

8 0
3 years ago
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