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
guapka [62]
3 years ago
9

Pete borrowed $400 for 1 year. He paid back a total of $440. What was the interest rate per year?

Mathematics
2 answers:
Katen [24]3 years ago
7 0

Answer:

$40

Step-by-step explanation:

find Y

$400=x

$440=x+y

x+$40=x+y

$40=y

OleMash [197]3 years ago
5 0

I=PRT/100

1. Make R (rate) subject

R/100= I/PT

2. Substitute and calculate

r/100= i/pt

r/100= 40/400 × 1

(<em>4</em><em>0</em><em> </em><em>i</em><em>s</em><em> </em>from 440-400.<em>T</em><em>h</em><em>e</em><em> </em><em>i</em><em>n</em><em>t</em><em>e</em><em>r</em><em>e</em><em>s</em><em>t</em>)

r/100= 0.1

r/100×100= 0.1×100

r=10% (interest rate per year)

To confirm

I=PRT

I= 400×10/100×1

I= $40 (Interest)

You might be interested in
The ratio of the sum k and 12 to 15 is the same as the ratio of 30 to 25. What is K?
avanturin [10]
K would be 13 I hope his helps
3 0
4 years ago
What is the theoretical probability that you will get a sum of 7? P(sum of 7)=
hammer [34]

Answer:

\frac{12}{36} or \frac{1}{3}

Step-by-step explanation:

Notice that there are 6 sums of 7 on the table provided. For example rolling a 1 and then a 6 would produce a sum of 7.

The reason the answer is 12 and not 6 is that you need to double it for the two dice. Let's say one die was green and the other was blue. The green die could be the 1 and the blue die could be the 6. That is one favorable outcome, but it could be switched. Maybe the green die was 6 and the blue die was 1.

4 0
3 years ago
What is the simplified form of the following expression?<br> 6c^2 + 2.5d - d + 2c^2 - 3d
Airida [17]
Simplify the Expression.

8c^2 - 1.5d <span />
4 0
3 years ago
I need help really badly with this
Scorpion4ik [409]
Shortcut: you notice that the curve passes through (1,0)

Only log function passes this point.
6 0
3 years ago
To solve for 51 x 4, Tamara used mental math by thinking about 51 + 51 + 51 + 51. Which best describes the strategy she used to
sergey [27]
Its faster in adding isn't always right when you are multiplying numbers
5 0
3 years ago
Other questions:
  • find the positive value of k that would make he left side of the equation a perfect square trinomial x^2-kx+64
    8·1 answer
  • How many days did Pete's Pizza meet its goal? Round the calculation to the nearest percent.
    6·1 answer
  • Which number has the greatest absolute value?
    12·2 answers
  • The area of the Pacific Ocean is about 6.0061×10^7 square miles. The area of the Southern Ocean is about 7.8483×10^6 square mile
    8·2 answers
  • Graph the equation y+4=xy+4=x.
    6·1 answer
  • The area of a rhombus is given by the formula A=1/2xy,where x and y are the lengths of the diagonals. If the diagonals of a rhom
    10·1 answer
  • For which equation would x = 10 not be a solution?
    15·2 answers
  • If DF and GI are parallel lines and mGHE = 47°, what is mIHE?
    15·1 answer
  • There are 15 students waiting at the bus stop. If the bus can only fit 6 more students, how many ways can the driver select the
    5·1 answer
  • A carpenter is making a backyard deck. In the measurements, he has determined that he needs to make a support triangle with an a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!