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Dmitriy789 [7]
2 years ago
12

Please help me i do not understand explain how you answer the following questions.

Mathematics
1 answer:
dlinn [17]2 years ago
7 0

For 6, you could divide 56 kilometers by 8 kilometers to get 7 kilometers. Multiply 7 by 5 to get 35. There would be 35 miles in 56 kilometers

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3 years from now, Ron's age will be 2 times that of Miley. Three years ago, Ron's age was 3 times that of Miley.
andrezito [222]

Answer:

M=9

EXPLANATION:

Let R represent Ronald’s present age. Let M represent Miley’s present age. Three years from now, Ronald and Miley will be R+3 and M+3 years old, respectively.

Your assertion “Three years from now, Ron’s age will be 2 times that of Miley's” can be written as

R + 3 = 2*(M + 3)

Similarly, your assertion “Three years ago, Ron's age was 3 times that of Miley's” can be written as

R - 3 = 3*(M-3)

We can add the left side of these equations together, and also the right side of these equations together, and obtain a new equation …

R + 3 + R - 3 = 2*(M + 3) + 3*(M - 3) = 2M + 6 + 3M - 9 = 5M - 3

This can be simplified to

2R = 5M - 3

We can divide both sides of the last equation by 2, and obtain ..

(2/2) * R = (5/2) * M - 3/2, or R = (5/2) * M - 3/2.

Now we can “plug in” the last equation into either of our first two equations of this post, and solve for M.

Using the first equation, we have

(5/2) * M - 3/2 + 3 = 2 *(M + 3) = 2M + 6

We now have

(5/2) * M + 3/2 = 2M + 6

The left side of this equation can be rewritten as

(5M + 3) / 2, so we obtain

(5M + 3) / 2 = 2M + 6

Multiplying both sides by 2, we have

5M + 3 = 4M + 12

Subtracting 4M and 3 from both sides, we obtain

M = 9

Miley’s present age is 9.

plss give brainliest

3 0
3 years ago
I NEED HELP PLEASE THANK YOU ​
Sauron [17]

Answer:

d

Step-by-step explanation:

if you tried to do the d you would end up with this

/_)

7 0
2 years ago
HELPPPP I MARK BRAINLIEST TO CORRECT ANSWERS
azamat

Answer:

I think B option is correct ..I m 95% sure

8 0
3 years ago
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Question 10 of 25
Llana [10]

Answer:

y= -1/2x-6.5

Step-by-step explanation:

5 0
3 years ago
Tom wants to reach a second floor window on a house that is 20 feet above ground. If he must put the ladder at a 70 degree angle
Hatshy [7]
<u>Question 1</u> 
see attachment 1
Answer: 21.3 ft

Question 2
see attachment 2
Answer: 16.7 ft

5 0
3 years ago
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