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
Katarina [22]
3 years ago
8

If the simple interest on $7000 for 4 years is $2520 then what is the interest rate

Mathematics
1 answer:
lidiya [134]3 years ago
6 0

let

i= Interest

p= Principle

r= rate

t= time

data given

i= $2520

p= $7000

t= 4years

r= ?

From the formula

i= prt

we make 'r' the subject by multiplying by pt both sides

i/pt=prt/pt

i/pt=r

its the same like

r=i/pt

r=$2520/($7000×4)

r=$2520/$28000

r=3/350

r=0.09%

therefore the interest rate is 0.09%

You might be interested in
Is 8.54 rational i am stuck and cant find answers
mina [271]
Yes 8.54 as rational number because in can be written as 854/100
5 0
3 years ago
Read 2 more answers
Answer the question present in the picture
never [62]
The solution step by step. 43 comes from adding all the given numbers together.

7 0
3 years ago
A $275 coat is on sale at 15% off. Find the sale price, round to the nearest cent.
Natali [406]

the answer is $233.75

3 0
3 years ago
Listed below are speeds (mi/h) measured from southbound traffic on I-280 near Cupertino, California (based on data from SigAlert
adell [148]

Answer:

Option (B) is the correct answer to the following question.

Step-by-step explanation:

Step-1: We have to find the Mean of the series.

The series is Given in the question 62 61 61 57 61 54 59 58 59 69 60 67.

Mean(\overline{x})=\frac{62+61+61+57+61+54+59+58+59+69+60+67}{12} = 60.67

Step-2: We have to find the Standard Deviation.

Let Standard Deviation be x.

Formula of Standard Deviation is: s= \sqrt{\frac{\sum(x_{i}+\overline{x})}{n-1}}

Put value in formula of Standard Deviation,

s= \sqrt{\frac{(62+60.67)^{2}+(61+60.67)^{2}+(61+60.67)^{2}+(57+60.67)^{2}+....(67+60.67)^{2}}{n-1}} = 40.75

Step-3: Then, we have to find the critical value by chi-square.

X_{1-\alpha/2}^{2}=3.82

X_{1-\alpha/2}^{2}=21.92

Then, find the confidence interval which is 95%.

\sqrt{\frac{(n-1).s^2}{X_{\alpha/2}^{2}} } = \sqrt{\frac{12-1}{21.92}.(4.075)^2 }\approx2.8868 \\ i.e 2.9

\sqrt{\frac{(n-1).s^2}{X_{\alpha/2}^{2}} } = \sqrt{\frac{12-1}{3.816}.(4.075)^2 }\approx6.9188 \\ i.e 6.9

5 0
3 years ago
Solve for W <br><br> T= sqrt(5/(wc)
Gnoma [55]
T= sqrt(5/wc) remove ( ) T= 5sqrt/wc multiply by wc Twc=5sqrt divide by Tc W= 5sqrt/cT hope this helps
5 0
3 years ago
Read 2 more answers
Other questions:
  • The measure of angles A is 124. Classify the angle as acute, right, obtuse, or straight.
    5·2 answers
  • a group of fitness club member lose a combined of 28 kilograms in 1 week .there are approximately 2.2 pounds in 11 kilogram . as
    10·1 answer
  • Yamri went to the store to buy gardening supplies. A bag of dirt was $3.99 and tulips cost 75 cents per bulb. He bought one bag
    13·2 answers
  • On the first day of ticket sales the school sold 1 senior citizen ticket and 5 child tickets for a total of $60. The school took
    9·2 answers
  • If one acute angle of a right triangle measure 37 what's the measure of the other acute angle
    7·1 answer
  • Help now if you dare!
    12·2 answers
  • Which would be the least helpful for supporting interpretations about the lives of late 19th century immigrants?
    13·1 answer
  • Which expressions are equivalent to (13x+2x−53x)−(−13x+5) ?
    7·1 answer
  • 5) The bakers at Healthy Bakery can make 160 bagels in 5 hours. How many
    13·1 answer
  • Good night everyone : )
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!