Brittany earned $835 babysitting this summer. She put her money into a savings account which earned 7.8% interest annually. If she leaves the money in the savings account for 3 months, how much interest will she earn?

$16.28

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 7.8%/100 = 0.078 per year,

putting time into years for simplicity,

3 months ÷ 12 months/year = 0.25 years,

then, solving our equation

I = 835 × 0.078 × 0.25 = 16.2825

I = $ 16.28

The simple interest accumulated

on a principal of $ 835.00

at a rate of 7.8% per year

for 0.25 years (3 months) is $ 16.28.

show us the graphs dude

step-by-step explanation:

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.