3 years ago

Solve the system of equations 6x + 3y = 9 and -5x – 5y = 0 by combining the equations.

Mathematics

1 answer:

jeka57 [31]3 years ago

5 0

Answer:

(X, y) =(3,-3)

Step-by-step explanation:

Use second equation

Apply to the first

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3 years ago

Read 2 more answers

A ship leaves port at 1:00 P.M. and travels S35°E at the rate of 27 mi/hr. Another ship leaves the same port at 1:30 P.M. and tr

Len [333]

To solve this problem you must apply the proccedure shown below:

1. You must apply the Law of Cosines, as you can see in the figure attached. Then:

- The first ship travels at $27 mi/hr$ in for two hours. Therefore, the side $a$ is:

$a=(27 mi/hr)(2 hr)=54mi$

- The second ship travels at $18 mi/hr$ for $1.5 hours$ . Therefore, the side $b$ is:

$b=(18mi/hr)(1.5hr)=27mi$

- Now, you can calculate $c$ :

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The answer is: $44 miles$

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=6%20%5Ctimes%20x%20%3D%20%20-%2024" id="TexFormula1" title="6 \times x = - 24" alt="6 \times

Finger [1]

The missing number is 4

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4 years ago