All categories

2 years ago

At the end of 8 years, Anna paid $400 interest for a loan. If the simple annual interest rate was 4%, how much did Anna borrow?

Mathematics

2 answers:

telo118 [61]2 years ago

8 0

Answer:

a mai no chi chi a haha acados

Step-by-step explanation:i stepped on chi chi and haha a lot

thank you dad no mortal can stop!

Valentin [98]2 years ago

4 0

Answer:

$1,250

Step-by-step explanation:

You can find the answer using the following formula:

i = Prn

i= interest= $400

P= principal

r= rate of interest=0.04

t= time periods= 8

You can replace the values you have in the formula and then, isolate P:

400= P*0.04*8

400=P*0.32

P= 400/0.32

P= 1250

According to this, the answer is that Anna borrowed $1,250.

You might be interested in

If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?

andre [41]

Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: $\frac{35}{128}$

Step-by-step explanation:

We need to find the probability that you will get exactly 4 tails, if you flip a fair coin 7 times.

This is the combination question.

The total combinations will be: 2^7=128

Now, finding number of ways we can get exactly 4 tiles:

We will use the formula:

$^nC_k=\frac{n!}{k!(n-k)!}$

in our given question, n= 7, k= 4

Putting values:

$^nC_k=\frac{n!}{k!(n-k)!}\\^7C_4=\frac{7!}{4!*3!}\\ ^7C_4=\frac{7*6*5*4!}{4!*3!}\\ ^7C_4=\frac{7*6*5}{6}\\ ^7C_4=35$

So, Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: $\frac{35}{128}$

Keywords: Probability

Learn more about Probability at:

#learnwithBrainly

7 0

3 years ago

A three inch diameter pulley on an electric motor that runs at 1800

Bezzdna [24]

Answer:

a) 3 inch pulley: 11,309.7 radians/min

6) 6 inch pulley: 5654.7 radians/min

b) 900 RPM (revolutions per minute)

Step-by-step explanation:

Hi!

When a pulley wirh radius R rotantes an angle θ, the arc length travelled by a point on its rim is Rθ. Then the tangential speed V is related to angular speed ω as:

$V=R\omega$

When you connect two pulleys with a belt, if the belt doesn't slip, each point of the belt has the same speed as each point in the rim of both pulleys: Then, both pulleys have the same tangential speed:

$\omega_1 R_1 = \omega_2 R_2\\$

$\omega_2 = \omega_1 \frac{R_1}{R_2} =1800RPM* \frac{3}{6}= 900RPM$

We need to convert RPM to radias per minute. One revolution is 2π radians, then:

$\omega_1 = 1800*2\pi \frac{radians}{min} = 11,309.7\frac{radians}{min}$

$\omega_2 = 5654.7 \frac{radians}{min}$

The saw rotates with the same angular speed as the 6 inch pulley: 900RPM

3 0

3 years ago

The table shows the number of boys and girls who signed up for certain summer classes.

Makovka662 [10]

Answer:

Music and Dance

Step-by-step explanation:

When looking at the numbers for each class u want to add up the numbers. When u get the answers look for the two numbers witch are the closes to each other.

7 0

2 years ago

Write an equation of each line in standard form with integer coefficients y=-7x-9

Mashcka [7]

Answer:

Take the y not the 7, or 9 and divide that by the qq. Before we divide it by the qq of its c we have to find the qq. I assume you already know the qq but if you don't heres how we find it. Take the 65 in the 9 by subtracting the 199 and then multiplying that by the same number we used in the begging. Y, which is and isn't a number at the same time. It is a letter, yes. But in this case it stands for a number. Assuming you already know the number, 15 you add that to 65, which would give you 80. Easy math, right? Haha. So to get your answer just multiply what you asked me in the first place. Hope this helps u!

Step-by-step explanation:

5 0

2 years ago

Solve -2 1/3 - (-5) <br><br><br> ANSWER PLZ

Jlenok [28]

Answer:

Step-by-step explanation:

2.6666666667

6 0

3 years ago