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Dmitrij [34]
3 years ago
14

If 12-6r=r+8-3r what is the value of r + 4

Mathematics
1 answer:
Trava [24]3 years ago
7 0

Answer:5

Step-by-step explanation:

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Solve and state any extraneous solutions
Mice21 [21]

\frac{3x}{x - 1}  + 2 =  \frac{3}{x - 1}

\frac{3x}{x - 1} +  \frac{2(x - 1) }{ x - 1}   =  \frac{3}{x - 1}

\frac{3x}{x - 1}  +  \frac{2x - 2}{ x - 1}  =  \frac{3}{x - 1}

\frac{3x + 2x - 2}{ x - 1}  =  \frac{3}{x - 1}

3x + 2x - 2 = 3

5x - 2 = 3

5x = 3 + 2

5x = 5

x =  \frac{5}{5}

x = 1

3 0
3 years ago
A straw has a diameter of 0.6cm and a length of 19.5 cm. What is the surface area of the straw round to the nearest tenth. Use 3
Nadusha1986 [10]

Answer:

37.3032cm^2

Step-by-step explanation:

Given data

Diameter= 0.6cm

Radius= 0.3cm

Lenght = 19.5cm

Surface area (A) =2πrh+2πr^2

Substitute

A=2*3.14*0.3*19.5+2*3.14*0.3^2

A=36.738+0.5652

A=37.3032

Hence the surface area is

37.3032cm^2

6 0
3 years ago
5. Luis found a new text messaging plan which will charge him $2.00 for 80 messages. Using this
Pavel [41]
I think that Luis would have to pay $22.50
7 0
3 years ago
6th GRADE MATH:
murzikaleks [220]

Answer:

200 ounces

Step-by-step explanation:

200 ounces.  because each pound has 16 ounces and 12.5 pounds has 200 ounces

6 0
3 years ago
Read 2 more answers
I’ll mark brainliest plz answer.
Alex17521 [72]

Answer:

they are called constants. they don't have a variable on them, so their value throughout the problem will remain the same or constant.

Step-by-step explanation:

5 0
3 years ago
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