Ask question

Ask question

All categories

Tcecarenko [31]

3 years ago

5

Sarah went on a run. On her run she found 6 rocks. When she was going back home she found 7 more rocks. When she got home she re

lized she lost 2 of the rocks. How many rocks does she have now?

1 answer:

Alexxx [7]3 years ago

7 0

Answer:

11

Step-by-step explanation:

first you add 6 + 7 = 13

then you 13 - 2 which gives you eleven!

You might be interested in

The length of a rectangle is represented by the function L(x) = 5x. The width of that same rectangle is represented by the funct

IgorC [24]

A= l x w
5x * 2x^2 - 4x + 13
10x^3 - 20x^2 + 65x

3 0

3 years ago

Read 2 more answers

........................answer

Nataly [62]

Answer:

B

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Please solve this quick.

Ivenika [448]

Should be JK

If not sorry

6 0

2 years ago

Water is added to a cylindrical tank of radius 5 m and height of 10 m at a rate of 100 L/min. Find the rate of change of the wat

nirvana33 [79]

Answer:

$V = \pi r^2 h$

For this case we know that $r=5m$ represent the radius, $h = 10m$ the height and the rate given is:

$\frac{dV}{dt}= \frac{100 L}{min}$

$Q = 100 \frac{L}{min} *\frac{1m^3}{1000L}= 0.1 \frac{m^3}{min}$

And replacing we got:

$\frac{dh}{dt}=\frac{0.1 m^3/min}{\pi (5m)^2}= 0.0012732 \frac{m}{min}$

And that represent $0.127 \frac{cm}{min}$

Step-by-step explanation:

For a tank similar to a cylinder the volume is given by:

$V = \pi r^2 h$

For this case we know that $r=5m$ represent the radius, $h = 10m$ the height and the rate given is:

$\frac{dV}{dt}= \frac{100 L}{min}$

For this case we want to find the rate of change of the water level when h =6m so then we can derivate the formula for the volume and we got:

$\frac{dV}{dt}= \pi r^2 \frac{dh}{dt}$

And solving for $\frac{dh}{dt}$ we got:

$\frac{dh}{dt}= \frac{\frac{dV}{dt}}{\pi r^2}$

We need to convert the rate given into m^3/min and we got:

$Q = 100 \frac{L}{min} *\frac{1m^3}{1000L}= 0.1 \frac{m^3}{min}$

And replacing we got:

$\frac{dh}{dt}=\frac{0.1 m^3/min}{\pi (5m)^2}= 0.0012732 \frac{m}{min}$

And that represent $0.127 \frac{cm}{min}$

5 0

3 years ago

Cerrena [4.2K]

Answer:

<h2>2x-10 = 65-x</h2><h2 />

Step-by-step explanation:

just add up both alternate internal angles as they are both equal

so, the equation is: 2x-10 = 65-x

7 0

3 years ago

Read 2 more answers