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3 years ago

A survey indicated that 3 out of 5 doctors use brand x aspirin. If 2000 were surveyed how many used brand x

Mathematics

2 answers:

nataly862011 [7]3 years ago

8 0

1200 is right did this a week ago

luda_lava [24]3 years ago

7 0

3/5
3x20/5x20
60/100
60x20/100x20
1200/2000
1200 doctors use brand x

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Which statement describes a car lease?

Margaret [11]

Answer: Option C

Step-by-step explanation:

You get to use a car for a specific time period by making monthly payments

usually when you get a car lease you pick out the car and (as an example) lets say you have a 3 year lease, you will pay monthly payments for 3 years then return the car.

6 0

3 years ago

Read 2 more answers

A one-parameter family of solutions of the de p' = p(1 − p) is given below.

tensa zangetsu [6.8K]

Answer:

A solution curve pass through the point (0,4) when $c_{1} = -\frac{4}{3}$ .

There is not a solution curve passing through the point(0,1).

Step-by-step explanation:

We have the following solution:

$P(t) = \frac{c_{1}e^{t}}{1 + c_{1}e^{t}}$

Does any solution curve pass through the point (0, 4)?

We have to see if P = 4 when t = 0.

$P(t) = \frac{c_{1}e^{t}}{1 + c_{1}e^{t}}$

$4 = \frac{c_{1}}{1 + c_{1}}$

$4 + 4c_{1} = c_{1}$

$c_{1} = -\frac{4}{3}$

A solution curve pass through the point (0,4) when $c_{1} = -\frac{4}{3}$ .

Through the point (0, 1)?

Same thing as above

$P(t) = \frac{c_{1}e^{t}}{1 + c_{1}e^{t}}$

$1 = \frac{c_{1}}{1 + c_{1}}$

$1 + c_{1} = c_{1}$

$0c_{1} = 1$

No solution.

So there is not a solution curve passing through the point(0,1).

3 0

3 years ago

Solve equation<br> 7+3x-12x=3x+1

inysia [295]

7+3x-12x=3x+1
We will first make all the numbers which have x in go to the left.
So 7+3x-12x-3x, we make the 3x negative since to make it move it needs to change.
Then we will make all the sevens go to the right, so 3x-12x-3x=1-7.
So now it is much easier to figure out.
-12x=-6

4 0

2 years ago

Write a three digit number using digit 2,9,4.draw a quick picture to show the value

sergij07 [2.7K]

A three digit number would be 294. You could do 200+90+4

7 0

2 years ago

your friend says that the volume of a sphere with a radius r is four times the volume of a cone with radius r. when is this true

Ierofanga [76]

Volume of a sphere is given by the formula: $V_{\circ}=\frac43\pi r^3$

If we pull the 4 out front we have, $V_{\circ}=4\left(\frac13\pi r^3\right)$ .

Volume of a cone is given by the formula: $V_{\triangle}=\frac{1}{3}\pi r^2\cdot h$

Notice that if the height of the cone is equal to the radius, $V_{\triangle}=\frac13\pi r^2\cdot r$

then it's exactly what we see in our volume formula without the 4!

7 0

2 years ago