Find the simple interest accumulated and the account balance. 1. Chris deposits $6,200 in an account that pays 12% annual simple interest for 4 years.
Formula:
Numbers:
Interest Earned: $
Account Balance: Principal + Interest Earned =
The simple interest is
The account balance is

Simple interest is: $2976

Account balance is: $9176

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 12%/100 = 0.12 per year,

then, solving our equation

I = 6200 × 0.12 × 4 = 2976

I = $ 2,976.00

The simple interest accumulated

on a principal of $ 6,200.00

at a rate of 12% per year

for 4 years is $ 2,976.00.

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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