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4 years ago

Solve the system of equations for x using elimination. 3x-2y=8 2x+2y=7

Mathematics

1 answer:

jonny [76]4 years ago

5 0

Answer is: x=3

Add the two equations together to eliminate y from the system.
Then divide each term by 5 and simplify.

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The net of a rectangular prism is shown.

Natali [406]

It should be D. Because the equation is 2(width+ height + length

6 0

3 years ago

David says he has 2/3 of a pipe length left, while Don says he has 11/16 of a length left. Which person has the longest section

Kruka [31]

Answer:

Don

Step-by-step explanation:

1. We make the fractions have common denominators so it is easier to compare them. We can do this buy multiplying 2/3 by a factor of 16, so it becomes 32/48. For 11/16, we multiply by a factor of 3 so it becomes 33/48. It is now apparent that Don has the longer pipe.

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4 years ago

Can anyone please help me with these sums? I need it fast.<br><br> Thanks,

Scilla [17]

Answers:

a) $5y^{2} z^{2}$

b) $4x^{2} y$

a) $3x^{2} +2x+4$

b) $3x+2$

c) $x-3$

a) $2x+3$

b) $2x^{2} -6x-24$

a) $4x-20$

b) $x(3x+2)=3x^{2} +2x$

I have a feeling I could be wrong for 4 a)

5 0

3 years ago

Count the number of strings of length 9 over the alphabet {a, b, c} subject to each of the following restrictions.

Andrew [12]

Answer:

The solution and complete explanation for the above question and mentioned conditions is given below in the attached document. I hope my explanation will help you in understanding this particular question.

Step-by-step explanation:

6 0

3 years ago

NEED ASAP

Nastasia [14]

Answer:

5700

Step-by-step explanation:

Assume that the total number of people working for the company is x. Since 65% of workers are men and 1,995 people working for the working are not men, then that means that 35% of the total number of people working for the company is equal 1,995.

Set up an equation: 0.35x = 1,995 and find x.

x = 5700

4 0

3 years ago