Apply simple interest formula
future value = present value (1+n*rate)
n=number of years
rate = annual interest rate in decimal
Plug in values,
10000=3900(1+0.0783*t)
1+0.0783t=10000/3900
t=(10000/3900-1)/0.0783
=19.98 years.
With compound interest, future value=present value (1+rate/n)^(nt)
n=1,rate=0.0783, future value=10000, present value=3900,
t=log(10000/3900)/log(1.0783)=12.49 years.
Answer:
Step-by-step explanation:
price of shoes= $45
discount= $15
let percentage be x
x=15/45*100
x=0.333333....*100= 33.333...%
The students in math class use square tiles to make arrays. If they
- use 8 (8=1·2·2·2) tiles, then they can form arrays of the length in 1 tile, 2 tiles, 4 tiles and 8 tiles;
- use 9 (9=1·3·3) tiles, they can form arrays of the length in 1 tile, 3 tiles and 9 tiles (one array less).
So, you can conclude that Celia is correct.
Recall that the interior angles of a quadrilateral add up to 360 degrees.
1) Let x be the measure of the missing angle, then we can set the following equation:
Solving for x we get:
2) Let y be the measure of the missing angle, then we can set the following equation:
Solving for y we get:
Answer:
1) 100 degrees.
2) 58 degrees.
Answer: 0.421, 0.422, 0.423, 0.43, 0.434
Step-by-step explanation:
