A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin

1 answer:

6 0

$\bf \cfrac{\textit{use X aspirin}}{\textit{don't use X aspirin}}\quad 3:5\qquad \cfrac{3}{5}\qquad \cfrac{3\cdot \frac{2000}{3+5}}{5\cdot \frac{2000}{3+5}}\implies \cfrac{3\cdot 250}{5\cdot 250}\implies \cfrac{750}{1250}$

You might be interested in

What number has 6 tens and 1<br> more one than tens?

vova2212 [387]

Answer:

Step-by-step explanation:

3 0

2 years ago

Given: Triangle ACD is isosceles; <1 is congruent to <3 Prove: Segment AB || Segment CD

julsineya [31]

Answer:

Segment AB || Segment CD

Step-by-step explanation:

Two lines are said to be parallel (||) if they do not meet, even when extended to infinity.

Given: <1 ≅ <3, ΔACD is an isosceles triangle.

Proof: Segment AB || Segment CD

From the diagram given,

AC ≅ AD (side property of isosceles triangle)

<3 = <4 (base angle property of an isosceles triangle)

<1 = <4 (alternate angle property)

Therefore, segment AB is parallel to segment CD.

8 0

4 years ago

PLEASE HELP NO LINKS AND NO BS

tiny-mole [99]

Explanation:
The square base of the pyramid has four sides with length 15 inches, making its perimeter four times that, or 60 inches. The slant height is

112×60=90 inches.

Therefore, the area of the base is B=152=225 square inches.

Each of the four lateral triangles has area 12⋅15⋅90=675 square inches.

The total surface area is 225+4⋅675=2,925 square inches.

5 0

3 years ago

PLEASE ANSWER FAST What is the average of the following two numbers? 5.67 x 10^-21 and 7.24 x 10^-19

adell [148]

Answer: The average of two numbers is $3.64835\times 10^{-19}$ .