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2 years ago

Help me will give brainliest

Mathematics

1 answer:

vovangra [49]2 years ago

3 0

Answer:

The first option is correct, 12/30 and 25/30

Step-by-step explanation:

To get common denominators, you need to find the GFC (greatest common factor) of 5 and 6, which is 30. Then you would need to make the fractions equal the same as the original fractions, by multiplying.

2/5 = ?/30 <- you can see that 30 is 6 times more than 5. so this means you multiply 2 by 6 to get 12. 12/30

5/6 = ?/30 <- you can see that 30 is 5 times more than 6. so this means you multiply 5 by 5 to get 25. 25/30

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In which quadrant does 1/3 and 2 1/3 lie on?

quester [9]

Answer:

Quadrant 1

Step-by-step explanation:

The co-ordinates given match up exactly to co-ordinate 1 due to all the numbers given being positive.

There are 4 quadrants. Quadrant 1, 2, 3, and 4.

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3 years ago

Compare the number of friends at the beginning of a month and at the end of that month if it decreased by 60 and increased by 80

inn [45]

Answer:

plus 20 or positive

Step-by-step explanation:

-60+80= 20

positive

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2 years ago

if one person walked 1.2miles and the other walked 0.8 miles and they made 120.00 how much money did each one make

alexdok [17]

The one who walked 1.2 miles would have made $72 and the one who walked 0.8 miles would have made $48.

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3 years ago

50 POINTS

Kruka [31]

Answer:

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Step-by-step explanation:

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7 0

2 years ago

Read 2 more answers

The radius r(t)r(t)r, (, t, )of the base of a cylinder is increasing at a rate of 111 meter per hour and the height h(t)h(t)h, (

sp2606 [1]

Answer:

The volume is decreasing at a rate 20π cubic meter per hour.

Step-by-step explanation:

We are given the following in the question:

The radius is increasing at a rate 1 meter per hour.

$\dfrac{dr}{dt} = 1\text{ meter per hour}$

The height is decreasing at a rate 4 meter per hour

$\dfrac{dh}{dt} = -4\text{ meter per hour}$

At an instant time t,

r = 5 meter

h = 8 meters

Volume of cylinder =

$\pi r^2 h$

where r is the radius and h is the height of the cylinder.

Rate of change of volume is given by:

$\dfrac{dV}{dt} = \dfrac{d(\pi r^2 h)}{dt}\\\\\dfrac{dV}{dt} = 2\pi rh\dfrac{dr}{dt} + \pi r^2\dfrac{dh}{dt}$

Putting all the values we get,

$\dfrac{dV}{dt} = 2\pi (5)(8)(1) + \pi (5)^2(-4)\\\\\dfrac{dV}{dt} = 80\pi - 100\pi = -20\pi \approx -62.8$

Thus, the volume is decreasing at a rate 20π cubic meter per hour or 62.8 cubic meter per hour.

3 0

3 years ago