1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anestetic [448]
3 years ago
13

if the interest earned was $55.20 on an investment of $230 that has a rate of 3%, how long was the money invested?

Mathematics
1 answer:
noname [10]3 years ago
5 0

Answer:

8 years

Step-by-step explanation:

You might be interested in
Find the circumference of a circle whose area is 24
zalisa [80]

The answer is: " 17.35 " .

__________________________________

→ The circumference of the circle is: " 17.35 units " .

__________________________________


The area, "A", of a circle:

A = \pi * r² ;

Note: \pi  = 3.14 .

The area of the circumference, "C", of a circle:

C = 2 \pi r .

__________________________________________

Given:

A = 24 ;

Use the formula for the area, "A" of a circle, to find the radius, "r" .

Then, plug the value obtained for "r" into the formula for the circumference, "C" , of a circle:

C = 2\pi r l

To solve for the circumference, "C", of the circle.

________________

A = \pi  *  r^{2} ;

24 = 3.14 * r² ;

↔ 3.14 * r² = 24 ;

Divide each side of the equation by "(3.14)" ;

[3.14 * r²] / 3.14 = (24) / (3.14) ;

to get:

→ r² = 7.64331210191 ;

Take the positive square root of each side of the equation;

to isolate "r" on one side of the equation; & to solve for the radius, "r" ;

→ ⁺√(r²) = ⁺√(7.64331210191) ;

to get:

→ r = 2.76281034802 ;

____________________________

Now, plug this "obtained value" for the radius, "r" into the equation for the formula for the circumference, "C" of a circle:

→ C = 2 \pi * r ;

to solve for the circumference, "C", of the circle:

→ C = 2 * (3.14) * (2.76281034802) ;

= (6.28) * (2.76281034802) ;

= 17.3504489856 ;

→ round to: " 17.35 units" .

__________________________________

The answer is: " 17.35 " .

__________________________________

→ The circumference of the circle is: " 17.35 units " .

__________________________________

6 0
3 years ago
45% of what number is 27?
gtnhenbr [62]
45% of what number is 27

0.45x = 27
x = 27 / 0.45
x = 60 <== 45% of 60 = 27
5 0
3 years ago
A circle has a radius of 7 inches. What is the area of the circle?<br> Mark only one oval
Vikki [24]

Answer:A≈153.94in²

Step-by-step explanation:Hope this was helpful

3 0
3 years ago
The sum of three consecutive integers is 114. what are the three integers?
RSB [31]

Answer: 37, 38, and 39

Step-by-step explanation: This problem states that the sum of 3 consecutive integers is 114 and it asks us to find the integers.

3 consecutive integers can be represented as followed.

X ⇒ <em>first integer</em>

X + 1 ⇒ <em>second integer</em>

X + 2 ⇒ <em>third integer</em>

<em />

Since the sum of our 3 consecutive integers is 114, we can set up an equation to represent this.

X + X + 1 + X + 2 = 114

We can simplify on the left side by combining the X's and the numbers.

3x + 3 = 114

      -3     -3   ← <em>subtract 3 from both sides of the equation</em>

3x = 111

÷3    ÷3   ← <em>divide both sides of the equation by 3</em>

<em> </em>X = 37

X ⇒ <em>first integer   = 37</em>

X + 1 ⇒ <em>second integer   = 38</em>

X + 2 ⇒ <em>third integer   = 39</em>

<em />

<em>Therefore, our 3 consecutive integers are 37, 38, and 39.</em>

5 0
3 years ago
Read 2 more answers
A square has an area of 49 cm2. what is the length of each side?​
Maru [420]

Answer:

7x7=49, so 7

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Side length of cube with volume of 729 ft
    7·1 answer
  • Why should you generally expect some error when estimating a parameter? (for example, a population? mean) by a statistic? (for e
    11·1 answer
  • What is a polynomial function in standard form with zeroes 1,2,3, and -3?
    9·1 answer
  • If Joseph can read 4 books in 12 days, how many books does he read each day?
    14·2 answers
  • Solve the folowing equation for "n"<br> 6n - 4= 3n + 8
    13·2 answers
  • Determine the unit rate of a marathon runner who travels 9/2 miles in 3/4 hour.
    14·1 answer
  • Determine whether the data described below are qualitative or quantitative and explain why. The styles of shoes of clients enter
    9·1 answer
  • Need help filling in the blanks.. also not sure if the answers i filled in are correct or not.
    7·1 answer
  • John has a part-time job. He is payed £6.80 per hour. This week he worked for 9 and a half hours. Work out John's total pay for
    14·1 answer
  • Max sells lemonade for $3 per cup and candy for $2 per bar. He earns $450 selling lemonade and candy. If Max sold 90 bars of can
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!