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3 years ago

15

A pediatrician has smallpox vaccines numbered 1,2,3, chickenpox vaccines numbered 1,2,3,4,5,6, and influenza vaccines numbered 1

,2. If a single vaccine is picked at random, what is the probability that it is not an influenza vaccine?
Provide the final answer as a fraction.

1 answer:

Elis [28]3 years ago

8 0

Answer:

it's c

Step-by-step explanation:

because it is

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Leo, Kush and Mai share some money in the ratio 3:5:8

Marta_Voda [28]

Answer:

The total amount of money that they shared is $\£6,000$

Step-by-step explanation:

Let

x-----> amount of money Leo shares

y-----> amount of money Kush shares

z-----> amount of money Mai shares

we know that

$\frac{x}{y} =\frac{3}{5}$

$x=\frac{3}{5}y$ -----> equation A

$\frac{y}{z} =\frac{5}{8}$

$z=\frac{8}{5}y$ -----> equation B

$\frac{x}{z} =\frac{3}{8}$

$z=\frac{8}{3}x$ -----> equation C

$y=x+750$ ------> equation D

substitute equation A in equation D and solve for y

$y=\frac{3}{5}y+750$

$y-\frac{3}{5}y=750$

$\frac{2}{5}y=750$

$y=750*5/2=\£1,875$

Find the value of x (equation A)

$x=\frac{3}{5}(1,875)=\£1,125$

Find the value of z (equation C)

$z=\frac{8}{3}(1,125)=\£3,000$

therefore

The total amount of money is equal to

$x+y+z=\£1,125+\£1,875+\£3,000=\£6,000$

5 0

3 years ago

Just two more thanks for all the help thus far

guapka [62]

Answer:

The answer can be calculated by doing the following steps;

Step-by-step explanation:

3 0

3 years ago

3b-4/2 = c (solve for b)<br><br> please show work, thanks!

liq [111]

Answer:

Step-by-step explanation:

1. multiply both sides by 2

<em>3b-4=2c</em>

2. add 4 to both sides

3b=2c+4

3. divide both sides by 3

b= $\frac{2b+4}{3}$

6 0

3 years ago

What are the different types of gons. (hexagon, octagon, decagon)

Colt1911 [192]

There could be one more pentagon

**As far as I know

3 0

3 years ago

Explain the error. To find her total earnings for those two weeks, Nadia writes 7.5 x 18.5 + 20 =$158.75. Show the correct solut

noname [10]

Answer:

it should be 20

Step-by-step explanation:

3 0

3 years ago