PLEASE HELP NEED ANSWER ASAP

Charles deposited $12,000 in the bank.
He withdrew $5000 from his account after one year.
If he receives a total amount of $9340 after 3 years, find the rate of simple interest.

9%

Step-by-step explanation:

12000:

5000 for 1 year

7000 for 3 years

Total interest earned:

9340 - 7000

= 2340

Let x be the interest multiple

(5000 × x) + (7000 × 3x) = 2340

26000x = 2340

x = 0.09

0.09 × 100 = 9%

Verification:

interest earned on:

5000 for 1 year:

interest is 9% of 5000

= 450

7000 for 3 years:

3 × 7000 × 9%

= 1890

(12000 + 450 + 1890) - 5000 = 9340

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.