(13 POINTS) (SHOW YOUR WORK) Jordan is a biologist. She is going to randomly select one animal from her lab to study. There are
1 answer:
Answer:
The probability that Jordan does not selects a salamander is or 0.55
Step-by-step explanation:
First, we will have to add up all of the number of animals.
55 + 33 + 12 = 100
Now, we find the ratio of 55 and 100 to get the probability.
55 / 100 = 11 / 20
So, the probability that Jordan does not selects a salamander is or 0.55
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Answer:
x = 8 tickets
Step-by-step explanation:
Given that,
Mage has $36 to spend on movie tickets.
Each movie ticket costs $4.50.
Let he bought x tickets. ATQ,
4.50x = 36
So, he can buy 8 tickets.
Given:
The rate of interest on three accounts are 7%, 8%, 9%.
She has twice as much money invested at 8% as she does in 7%.
She has three times as much at 9% as she has at 7%.
Total interest for the year is $150.
To find:
Amount invested on each rate.
Solution:
Suppose x be the amount invested at 7%. Then,
The amount invested at 8% = 2x
The amount invested at 9% = 3x
Total interest for the year is $150.
Multiplying both sides by 100, we get
Dividing both sides by 50, we get
So, the amount invested at 7% is .
The amount invested at 8% is
The amount invested at 9% is
Hence, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.