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
zzz [600]
3 years ago
9

Ethan invested £500 in the bank for 2 years. he earned £40 simple interest in total. what was the simple interest rate per annum

Mathematics
2 answers:
sergejj [24]3 years ago
5 0

Answer:

4%.

Step-by-step explanation:

We have been given that Ethan invested £500 in the bank for 2 years. He earned £40 simple interest in total. We are asked to find the annual interest rate.

We will use simple interest formula to solve our given problem.

I=Prt, where,

I = Amount of interest,

P = Principal amount,

r = Annual interest rate in decimal form,

t = Time in years.

Upon substituting our given values in above formula, we will get:

40=500*r*2

40=1000*r

Now, we will divide both sides of our given equation by 100.

\frac{40}{1000}=\frac{1000*r}{1000}

\frac{4}{100}=r

\frac{1}{25}=r

0.04=r

Since our given interest rate is in decimal form, so we need to convert it in percentage.

0.04\times 100\%=4\%

Therefore, the simple interest rate per annum is 4%.

vovikov84 [41]3 years ago
3 0
The formula is
I=prt
I interest earned 40
P principle 500
R interest rate?
T time 2 years
Solve the formula for r by dividing both sides by pt to get
R=I/pt
R=40÷(500×2)
R=0.04×100
R=4%

Hope it helps!
You might be interested in
Vertical and Adjacent Angles (3 Activities)<br> 100 POINTS+BRAINLIEST
Yakvenalex [24]

Answer:

Problem B: x = 12; m<EFG = 48

Problem C: m<G = 60; m<J = 120

Step-by-step explanation:

Problem B.

Angles EFG and IFH are vertical angles, so they are congruent.

m<EFG = m<IFH

4x = 48

x = 12

m<EFG = m<IFH = 48

Problem C.

One angle is marked a right angle, so its measure is 90 deg.

The next angle counterclockwise is marked 30 deg.

Add these two measures together, and you get 120 deg.

<J is vertical with the angle whose measure is 120 deg, so m<J = 120 deg.

Angles G and J from a linear pair, so they are supplementary, and the sum of their measures is 180 deg.

m<G = 180 - 120 = 60

7 0
3 years ago
Read 2 more answers
Given f(x) = -3x - 2 find the foloeing
emmainna [20.7K]

Answer:

f(x) = -3x - 2

F(0)=-2

F(1)= -5

Domain R

Range R

Step-by-step explanation:

6 0
3 years ago
Multiply.
Inga [223]

Answer:

9 1/11

Step-by-step explanation

I just used Calculator Soup, it helps me with problems that are extremely hard for me to do (look it up)

8 0
2 years ago
Mary throws her Grandma’s favorite crystal dish out the second floor window, which is 6 meters from the ground. She is really up
wlad13 [49]

we know that

acceleration due to gravity is 9.8m/s^2

so, we get

a(t)=9.8

and acceleration will always be constant

we know that

integral of acceleration is velocity

so, we can integrate both sides

\int \:a\left(t\right)dt=\int \:9.8dt

v(t)=9.8t+C

we are given

v(0)=35m/s

we can use it and find C

v(0)=9.8*0+C

35=9.8*0+C

C=35

now, we can plug it back

v(t)=9.8t+35

we know that

integral of velocity is height

we can integrate it again

\int \:v\left(t\right)dt=\int \:\left(9.8t+35\right)dt

s(t)=\int \:\left(9.8t+35\right)dt

s(t)=4.9t^2+35t+C

now, we have

s(0)=6

we can use it and find C

s(0)=4.9(0)^2+35(0)+C

6=4.9(0)^2+35(0)+C

now, we can plug back C

C=6

and we get

s(t)=4.9t^2+35t+6.............Answer

4 0
3 years ago
Read 2 more answers
What are the solutions to the system of equations {y=2x^2+6x-10<br> Y=-x+5
otez555 [7]

Answer:

My solution is I don't have solutions

4 0
3 years ago
Other questions:
  • I need help with this
    12·2 answers
  • Find the volume of the hollow prism as shown (in cubic ft.)
    11·1 answer
  • Bianca has to drive 180 miles to her aunts house . She drove 30% of the total distance before lunch . How many miles did she dri
    14·2 answers
  • Find the length of XY
    8·2 answers
  • 2m+4<br> _____ + m + 2<br> ______<br><br> 8 6
    14·1 answer
  • Select the two values of x that are roots of this equation.
    5·1 answer
  • Your Local grocery store is having a special on soda. They're selling a 12-pack of 12-oz cans for $4.75. The 20-oz bottles are a
    10·1 answer
  • Find the value of x.<br> to<br> 4<br> 42°<br> 60°<br> -
    13·1 answer
  • In a data set with a normal distribution the main is 59 and standard deviation is three about what percent of the data live betw
    9·1 answer
  • This is my last question I need help with.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!