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2 years ago

How do I do this because I don't understand how to do the ratio

Mathematics

1 answer:

Elena L [17]2 years ago

8 0

Can u post a clearer pic? i can help u if u do :)

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An amusement park reports that the probability of a visitor riding its largest roller coaster is 30 percent, the probability of

11111nata11111 [884]

Answer:

P(largest or smallest) = 0.30 + 0.20 - 0.15

Step-by-step explanation

You combine the chances of doing the largest and smallest, without the chance of riding both.

5 0

2 years ago

Read 2 more answers

The population of rabbits on an island is growing exponentially. In the year 1991, the population of rabbits was 9100, and by 19

lisabon 2012 [21]

Answer:

$39,223\ rabbits$

Step-by-step explanation:

we know that

The equation of a exponential growth function is given by

$y=a(1+r)^x$

where

y is the population of rabbits

x is the number of years since 1991

a is the initial value

r is the rate of change

we have

$a=9,100$

substitute

$y=9,100(1+r)^x$

For the year 1998

the number of years is equal to

x=1998-1991=7 years

we have the ordered pair (7,18,000)

substitute in the exponential equation and solve for r

$18,000=9,100(1+r)^7$

$(18,000/9,100)=(1+r)^7$

elevated both sides to 1/7

$(1+r)=1.1023$

$r=0.1023$

therefore

$y=9,100(1+0.1023)^x$

$y=9,100(1.1023)^x$

Predict the population of rabbits in the year 2006

Find the value of x

x=2006-1991=15 years

substitute the value of x in the equation

$y=9,100(1.1023)^{15}$

$y=39,223\ rabbits$

6 0

2 years ago

What is the inequaliity of 3<-5n+2n and how do you put it on a number line

timama [110]

The inequality would be the negative factor, because -5n+2n is 3n. You would write it on a number line like this.....
Sry, i was just making an educated guess.... RIP....

6 0

3 years ago

Read 2 more answers

David leaves reading at 11 45am. he arrives at cardiff at 1 45pm. david drives at an average speed of 56 miles per hour. work ou

yan [13]

Step-by-step explanation:

speed = distance/time

we know the speed and the time (11:45am to 1:45pm = 2 hours).

distance = speed × time = 56 m/h × 2 h = 112 miles

3 0

1 year ago

Help!

vladimir2022 [97]

The answer is D .............

6 0

2 years ago