MATHEMATICS COLLEGE

Pls answer the question important

Answers

Answer 1

Answer:

Step-by-step explanation:

no they are not parallel

Answer 2

Answer:

Answer:

not equal

Step-by-step explanation:

its not parallel because sum of angles of alternate angle are not equal.

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A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 70% salt and Solution B is 95% salt. She wants to obtain 150 ounces of a mixture that is 75% salt. How many ounces of each solution should she use?

Answers

Answer:

Solution A: 120 ounces

Solution B: 30 ounces

Step-by-step explanation:

Let's call A the amount of Solution A. Solution A is 70% salt

Let's call B the amount of Solution B. Solution A is 95% salt

The resulting mixture should have 75% salt and 150 ounces .

Then we know that the total amount of mixture will be:

$A + B = 150$

Then the total amount of salt in the mixture will be:

$0.7A + 0.95B = 0.75 * 150$

$0.7A + 0.95B = 112.5$

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -0.95 and add it to the second equation:

$-0.95A -0.95B = 150 * (-0.95)$

$-0.95A -0.95B =-142.5$

$0.7A + 0.95B = 112.5$

--------------------------------------

$-0.25A = -30$

$A = (-30)/(-0.25)$

$A = 120\ ounces$

We substitute the value of A into one of the two equations and solve for B.

$120 + B = 150$

$B = 30\ ounces$

James has $20.00 in his checking account. He goes to the bank and withdraws $20.00. How much money does James have in his account immediately after withdrawing the $20.00?

Answers

Answer:

$0.00

Step-by-step explanation:

$20.00-$20.00=$0.00

Please help me out with the below question

Answers

Answer:

Step-by-step explanation:

this is only what I know correct me if I'm wrong thank you

What is the correct relationship between events A and B: A: Laura participated in an out-of-town volleyball game at 11:00 AM last Friday. B: Laura met with her academic advisor on campus at 11:00 AM last Friday. A and B are mutually exclusive. A and B are complementary. A and B are not mutually exclusive. If B is true, A is trus

Answers

A and B are mutually exclusive

42
Solve the equation: 8 =
a) z = 10
b) z = 44
c) z=3
d) z=7

Answers

Step-by-step explanation:

the question isn't complete

Enter the range of values for x

Answers

Greetings from Brasil...

See the attached figure. The smaller the θ angle, the smaller the AB side will be. If the angle θ = 90º, then AB = 25. As θ < 90, then AB < 25

5X - 10 < 25

5X < 25 + 10

X < 35/5

X < 7

The AB side can be neither zero nor negative. So

5X - 10 > 0

5X > 10

X > 10/5

X > 2

2 < X < 7

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