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Alex17521 [72]
3 years ago
5

Solve 2r – 15 = -9r + 18. r = 0.3 r = -0.3 r = 3 r = -3

Mathematics
1 answer:
Aleksandr [31]3 years ago
8 0

Answer:

r=3

Step-by-step explanation:

Let's solve your equation step-by-step.

2r−15=−9r+18

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The slope of the line is m=3/4. One point is (x, 2) and (3,-4)<br> Find X
Viktor [21]

Answer:

x is 11

Step-by-step explanation:

We know the slope (3/4) and a point (3,-4), so we can use point-slope form (y-y1=m(x-x1)

Substitute the numbers into the equation

y--4=3/4(x-3)

simplify

y+4=3/4(x-3)

do the distributive property

y+4=3/4x-9/4

subtract 4 from both sides

y=3/4x-25/4

this is the equation of the line.

Since it says that (x,2) is a point in the equation, we can substitute it into the equation

2=3/4x-25/4

add 25/4 to both sides

33/4=3/4x

multiply by 4/3

11=x

we can double check by plugging (11,2) into the equation of the line.

2=3/4(11)-25/4

2=33/4-25/4

2=2

it works! :)

Hope this helps!

7 0
3 years ago
Calculate the geometric mean of 2 and 200
kakasveta [241]
The geometric mean of 2 & 200 is *(20)*
5 0
2 years ago
The answer is 355 houses, but can someone tell me how please?
Ymorist [56]
So you do 20%*426 to get 85.2 then you would subtract 85.2 from 426 because they sold 20% more than last year.  On top of that the answer isn't 355 it is 340.8.
5 0
3 years ago
I will mark you brainliest if your answer is right
rusak2 [61]
12.72 is the answer
8 0
3 years ago
Which is the mode of this data?<br><br> 12, 19, 22, 17, 15, 18, 15, 14, 16
Snezhnost [94]
Answer: 15
REMEMBER: The mode is the value that appears most frequently in a data set.
4 0
3 years ago
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