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sergeinik [125]
2 years ago
8

Solve the following system of equations by elimination:

Mathematics
1 answer:
sergeinik [125]2 years ago
6 0

Answer:

x=4

y=5

(4,5)

Step-by-step explanation:

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The clerk at the checkout counter earned $350 in 25 hours.
REY [17]

Answer: 14 a hour

Step-by-step explanation:

3 0
2 years ago
A beacon is flashing on top of a 50 foot tower. A 6 foot tall man walks constantly away from the tower at 5 feet/sec. At the ins
Viefleur [7K]

Answer:\frac{253}{44}

Step-by-step explanation:

ignore the "at the instant the man is 30 feet away" part, set it as X and the man's shadow as Y.

Similar triangles so we can do \frac{50}{x+y}  = \frac{6}{y}.

Solve for it we get 44y = 6x

Differentiate relative to time t, we get 44y' = 6x'.

change in x (x') is equal to 5. And we get the answer y' = \frac{33}{44}.

the \frac{33}{44} ft/sec is the rate of which the length of the shadow is changing. add 5 to it for the rate of the tip of his shadow moving away from the tower.

7 0
2 years ago
A loan of $5000 is made by Citizens State bank at a simple interest rate of 7.25%. Calculate the simple interest owed and the to
solniwko [45]

Answer:

bite my wrist

Step-by-step explanation:

4 0
2 years ago
Fill in the blank to make the two fractions equivalent.<br><br> /18 = 5/6
Dahasolnce [82]

Answer:

15/18=5/6

hope it helps ;-)

8 0
3 years ago
Read 2 more answers
Find the values of x y and z
andrey2020 [161]

9514 1404 393

Answer:

  • x = 18√2
  • y = 18√3
  • z = 36

Step-by-step explanation:

These "special" right triangles have side length ratios that it is useful to remember.

<u>45°-45°-90° triangle</u>

Sides have the ratios 1 : 1 : √2. That is, x is √2 times as long as the side length shown as 18.

  x = 18√2

<u>30°-60°-90° triangle</u>

Shortest to longest, sides have the ratios ...

  1 : √3 : 2

That is, y is √3 times the length of the side marked 18, and z is 2 times the length of the side marked 18.

  y = 18√3

  z = 2·18 = 36

4 0
3 years ago
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