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Mnenie [13.5K]
3 years ago
8

Given that AOC is straight line,find the value of the unknown in each of the following figuresò​

Mathematics
1 answer:
Basile [38]3 years ago
4 0

Answer:

x=52°

Step-by-step explanation:

38° +90°+x = 180° ( Angles on a straight line)

x+ 128° =180°

x= 180° -128°

x= 52°

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HELP ASAP
Lesechka [4]
452.2 cubic inches!!
6 0
3 years ago
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
-5(5-3v)=-115<br> Helpp me please
prisoha [69]

we start by opening the brackets so it will be -25 plus 15 v is equals to 115. negative times a negative is a positive so -5 times -3 we we have gotten positive 15v there I hope you understood so our new equation is -25 + 15v is equals to 115 collect the like terms 15v is equals to 115 + 25 15 v is equals to 140 divide both sides by 15 so v is equals to 9 and 1/3

8 0
3 years ago
Which equation is equivalent to the formula d = rt?<br>r = d/t<br>r = dt<br>t = r/d<br>t = dr​
Allisa [31]

Step-by-step explanation:

d = rt

divide t

d/t = r

r = d/t

6 0
3 years ago
Can anyone help me solve this problem: 3i(-5i)
katovenus [111]
The answer is -15i^2

4 0
3 years ago
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