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Savatey [412]
3 years ago
8

What is y+11= -7/9 (x-18)?

Mathematics
1 answer:
scoray [572]3 years ago
6 0

Answer:

y=2.2

Step-by-step explanation: Hope this helps you out!!

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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
3 years ago
In a salsa recipe, the number of tomatoes added is proportional to the amount of salt added. This graph shows the relationship.
Sindrei [870]
Can u help me first please
5 0
4 years ago
Find the slope of the line that passes through (9, 6) and (5, 5).
Alecsey [184]

Answer:

1/4

Step-by-step explanation:

y2-y1/x2-x1=m

6-5/9-5=1/4

7 0
3 years ago
Two 6-sided dice are rolled. What is the probability that the sum is odd and the number on one of the dice is a 1?
Colt1911 [192]

Answer:

For knowing what the probability will be, you need to see the dice individually.

The probability that dice 1 will get a 1, is 1/6.  

The probability that dice 2 will get an odd number, is 3/6 or 1/2.

Now what is the probability that those two both come true?

I have no clue maybe multiply both and then you will get something like;

1/6.1/2  = 1/12

                             

8 0
3 years ago
A bag contains white marbles and red marbles, 20 in total. The number of white marbles is 5 more than 2 times the number of red
Nitella [24]

Answer:

15

Step-by-step explanation:

let r represent red marbles then white = 2r + 5 and total is 20, thus

r + 2r + 5 = 20 ( subtract 5 from both sides )

3r = 15 ( divide both sides by 3 )

r = 5 ← number of red marbles

Thus number of white = 20 - 5 = 15

7 0
4 years ago
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