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3 years ago

Solve : x + 1/2 + x + 2/3 − x + 3/4 = 2

Mathematics

2 answers:

valentinak56 [21]3 years ago

8 0

Answer:

x= 1 7/12

Step-by-step explanation:

x+1/2+x+2/3-x+3/4=2

1. We know that x+x-x=x

2. 1/2+2/3-3/4=6/12+8/12-9/12=5/12

3. x+5/12=2

4. x=2-5/12

x=1 7/12

tiny-mole [99]3 years ago

3 0

Answer:

x = 1/12

Step-by-step explanation:

x+x-x = x

1/2 + 2/3 + 3/4 = 23/12

both of the above are:

23/12 +x = 2

x= 2 - 23/12

x= 1/12

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yKpoI14uk [10]

Answer:

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Step-by-step explanation:

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3 years ago

Choose the point slope form of the equation below that represents the line that passes through the points (-3, 2) and (2, 1)

mihalych1998 [28]

Answer:

$\large\boxed{y-1=-\dfrac{1}{5}(x-2)}$

Step-by-step explanation:

The point-slope form of a line:

$y-y_1=m(x-x_1)$

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4 0

3 years ago

- 3x + 2y = -6<br> x + 7y = 2

mart [117]

Answer:

(x,y)= (10 -2)

9 3

Step-by-step explanation:

there’s supposed to be lines under the 10 in the -2

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3 years ago

Tina raised the number 3 to a power and then added 19 to the result .She obtained the sum 100. To what power did she raise 3 ?

Romashka-Z-Leto [24]

Answer:

3^4, she raised it to the 4th power

Step-by-step explanation:

3^x+19=100

-19

3^x=81

We can make a table now to find what power of three = 81

Powers of three table

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3 years ago

A right circular cylinder is changing shape. The radius is decreasing at the rate of 2 inches/sec while it's height is increasin

Savatey [412]

Answer:

Step-by-step explanation:

Volume of a cylinder is expressed as;

$V = \pi r^2 h$

$\frac{dV}{dt} = \frac{dV}{dr} \frac{dr}{dt} +\frac{dV}{dh} \frac{dh}{dt}$

dV/dr = 2πrh

dV/dr = 2π(4)(6)

dV/dr = 48(3.14)

dV/dr = 150.72in³/m

dV/dh = πr²

dV/dh = 3.14(4)²

dV/dh = 50.24

Given

dh/dt = 5in/s

dr/dt = 2in/s

Substitute into the dV/dt

dV/dt = 150.72(2)+50.24(5)

dV/dt = 301.44 + 251.2

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The volume is changing at the rate of 552.640in³/s

7 0

2 years ago