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Leto [7]
3 years ago
7

In a zoo there are 30 monkeys, some gorillas and chimpanzees. The ratio of monkeys to gorillas is 6 to 1. The ratio of monkeys t

o chimpanzees is 5 to 2. How many gorillas are there? How many chimpanzees are there?
Mathematics
1 answer:
gregori [183]3 years ago
4 0
If the ratio of monkeys to gorillas is 6:1
that means (1÷6)*30=5 gorillas

if the ratio of monkeys to chimpanzees is 5:2
that means (2÷5)*30=12 chimpanzees
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A weather forecaster predicts that there is a 45% probability of snow today. What is the probability that it will not snow?
Ilia_Sergeevich [38]
55% if the percent is out of 100%. in which most weather statisics are out of 100. in which you take 100-45= giving you 55%
8 0
3 years ago
Helps please does that look right to y’all ?
ladessa [460]
<h3>You have the correct answer</h3><h3>Interest rate = 21.5%</h3>

===============================================

Work Shown:

i = P*r*t .... simple interest formula

i = simple interest

i = 2075-1000 = 1075

P = 1000 = amount borrowed (principal)

r = unknown interest rate

t = 5 = time in years

So,

i = P*r*t

1075 = 1000*r*5

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r = 1075/5000

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5 0
3 years ago
Suppose a family starts out 50 miles from home at time t = 0. They travel away from home at a constant speed of 45 miles an hour
skelet666 [1.2K]
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3 0
3 years ago
Read 2 more answers
A bag contains 5 white marbles and 5 blue marbles. You randomly select one marble from the bag and put it back. Then, you random
Leokris [45]

Answer:

Event A = white marble is selected

Event B = blue marble is selected

P(A) = 5/10 = 1/2

p(B) = 5/10 = 1/2

Probability that A and B are independent events is:

P(A∩B) = 1/2 × 1/2

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5 0
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Bag contains 2 red marbles 2Green marbles and 4 blue marbles if we choose a marble than other marble without putting the first o
Murrr4er [49]

Answer:

The probability that the first marvel will be red and the second will be green is 7.14%.

Step-by-step explanation:

Since a bag contains 2 red marbles, 2 green marbles and 4 blue marbles, if we choose a marble and then other marble without putting the first one back in the bag, to determine what is the probability that the first marvel will be red and the second will be green, the following calculation must be performed:

2 + 2 + 4 = 8

2/8 x 2/7 = X

0.25 x 0.2857 = X

0.0714 = X

Therefore, the probability that the first marvel will be red and the second will be green is 7.14%.

6 0
2 years ago
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