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BabaBlast [244]

3 years ago

14

A set of cards includes 24 yellow cards, 18green cards, and 18 blue cards. What is the probability that a card chosen at random

is not green ?

1 answer:

PSYCHO15rus [73]3 years ago

3 0

Answer: 70%

Step-by-step explanation:

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50 POINTS!!! HELP!!! What is the answer?

kobusy [5.1K]

Isn't this the NWEA?

3 0

3 years ago

Read 2 more answers

I really need help please<br> Will give you a thanks and make you the brainliest!

kolbaska11 [484]

Answer:

a= 2s +3t

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c= a+2b+c

d= 2x-1

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f= 4t-2st-s

3 0

3 years ago

What is the slope of the line shown?

Over [174]

Answer:

-2

Step-by-step explanation:

1) Look at the y-intercept. The line crosses the y-axis at (0,7)

Follow it down, it goes down two and over one to directly intersect the grid.

Rise over run = 2/1

2/1 = 2

However, the line is negative, as it's sloping down from the left to the right, making the slope -2

5 0

3 years ago

Pls help mark u brainlist

Molodets [167]

Do what that person with the long explanation says it’s most likely right!!

8 0

2 years ago

I'm studying a new bacteria that doubles in numbers every 25 minutes. If i start with 50 bacteria, how long until i have 5 milli

dimaraw [331]

Answer:

415.63 minutes

Step-by-step explanation:

Growth can be represented by the equation $A=A_0e^{rt}$ . We can find the rate at which it grows by using t=25 minutes and $\frac{A_{0}}{A} =2$ or double the amount at that time. The first step we always take is to divide $A_0$ by A.

$[tex]\frac{A_{0}}{A}=e^{rt}\\2=e^{r(25)}$

$2=e^{(25)r}$

To solve for r, we will take the natural log of both sides and use log rules to isolate r.

$ln 2=ln e^{(25)r}\\ln 2=25r (ln e)\\\frac{ln2}{25} =r$

We know $lne=1$ so we were able to cancel it out and divide both sides by 25.

We solve with a calculator $\frac{ln2}{25} =r\\0.0277=r$

We change 0.0277 into a percent by multiplying by 100 to get 2.77% as the rate.

The equation is $A=A_0e^{0.0277t}$ .

We repeat the step above substituting A=5,000,000, $A_0$ =50, and r=0.02777. Then solve for t.

$5000000=50e^{0.0277t}\\\frac{5000000}{50} =e^{0.0277t}\\100000=e^{0.0277t}\\ln100000=lne^{0.0277t}\\ln100000=0.02777t(lne)\\\frac{ln100000}{0.0277} =t$

t=415.63 minutes

6 0

3 years ago