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2 years ago

What is the total amount on an investment account of $450 at an

1 answer:

3 0

The equation for simple interest is I = PRT. I = interest earned, P = principal/money invested, R = rate as a decimal, T = time in years.

I = (450)(0.03)(4)
I = 54

$54 is your answer

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In a math class with 28 students, a test was given the same day that an assignment

Kipish [7]

Answer:

Probability that a student who passed the test did not complete the homework = 0.07

Step-by-step explanation:

Given:

Total number of students = 28

Number of students who passed the test = 18

Number of students who completed the assignment = 23

Number of students who passed the test and also completed the assignment = 16

To find: probability that a student who passed the test did not complete the homework

Solution:

Probability refers to chances of occurrence of some event.

Probability = number of favorable outcomes/total number of outcomes

Let A denotes the event that students passed the test and B denotes the event that students completed the assignment

P(A only) = $P(A)-P(A\cap B)$

Here,

$P(A)=\frac{18}{28}\,,\,P(A\cap B)=\frac{16}{28}$

So,

$P(A\,\,only)=\frac{18}{28}-\frac{16}{28}=\frac{2}{28}=\frac{1}{14}=0.07$

Therefore,

probability that a student who passed the test did not complete the homework = 0.07

7 0

2 years ago

What number is the opposite of -48? enter your answer in the box below?

BARSIC [14]

The opposite of -48 is positive 48, Written as just 48.

8 0

3 years ago

How to sovle <br> (x+1/x)^2

Slav-nsk [51]

$(\frac{x + 1}{x} ) ^{2} \\ = \frac{ {(x + 1)}^{2} }{ {x}^{2} } \\ = \frac{ (x + 1)(x + 1) }{ {x}^{2} } \\ = \frac{ {x}^{2} + 2x + 1}{ {x}^{2} }$

Hope you could get an idea from here.

Doubt clarification- use comment section.

4 0

2 years ago

During a certain five year. The consumer price index decreased by 75% but during the next five yearperiod is decreased by only 3

scZoUnD [109]

Answer:

the price index

Step-by-step explanation:

because it said during a CERTAIN five year the cosumer pice index DECREASED by only 75%

7 0

2 years ago

Last week, Leah worked 25 hours on weekdays and 11 hours on the weekend. Which ratio compares the number of hours Leah worked on

Akimi4 [234]

Answer:

25:36

Step-by-step explanation:

the number of hours on weekdays which is 25, and the total hours she worked is 25+11 which is 36, so it is 25:36

4 0

2 years ago