Mathematics, 26.10.2019 18:43 proutyhaylee

Which of the following investments will earn the greatest amount of interest? a. $2,400 invested for 3 years at 5.0% interest b. $1,950 invested for 4 years at 4.0% interest c. $1,600 invested for 8 years at 3.0% interest d. $1,740 invested for 2 years at 8.0% interest

Answers: 2

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Answers

first we will count the amount of interest for :

A. $2,400 - 3 years at 5.0% : first we need to count what is one percent of $2,400, and we do that by dividing 100 , and that gives us $24, to count our interest in one year we need to multiply $24 with 5.0 and that gives us $120 per year , so to calculate the final amount we need to multiply $120 with the amount of years given and that is 3, so the final amount of interest that we will earn at $2,400 - 3 years at 5.0% is $360;

B. $1,950 invested for 4 years at 4.0% , we repeat the same process, we count one percent of $1950 by dividing it with 100 and that gives us $19,5, then we multiply those $19,5 with the interest rate which is 4.0 and that gives us $78 per year,then we multiply that amount with 4 (number of years) , and in 4 years we will earn $312

C. $1,600 invested for 8 years at 3.0% interest : again we count one percent of $1600 which is $16, then multiply that with the interest which is 3.0 and that gives us earnings of $48 per year,then we multiply that amount with 8 (number of years), so in 8 years we will earn $384

D. $1,740 invested for 2 years at 8.0% interest : again we count one percent of $1,740 and that is $17,4, then we count how much we will earn in 1 year , and we do that if we multiply 17,4 with the interest which is 8.0, that gives us $139.2 per year, and for 2 years that gives us the total earnings of $278.4

So the correct answer is C) $1,600 invested for 8 years at 3.0% interest , which will earn us $384.

Answer from: edwmal638

the correct answer is c

Answer from: Quest

answer: e 9, 5.75

step-by-step explanation:

step 1

find the variation ab in the x coordinate

delta x=(x2-x1)=10-> 8 units

find the variation ab in the y coordinate

delta y=(y2-y1)=6-> 2 units

step 2

find the coordinates point c

x coordinate

cx=ax+delta x*2/> cx=2+8*(2/> cx=3

y coordinate

cy=ay+delta y*2/> cy=4+2*(2/> cy=4.25

the coordinates of point c are (3,4.25)

step 3

find the coordinates point d

x coordinate

dx=ax+delta x*4/> dx=2+8*(4/> dx=4

y coordinate

dy=ay+delta y*4/> dy=4+2*(4/> dy=4.5

the coordinates of point d are (4, 4.5)

step 4

find the coordinates point e

x coordinate

ex=ax+delta x*4/> ex=2+8*(6/> ex=5

y coordinate

ey=ay+delta y*4/> ey=4+2*(6/> ey=4.75

the coordinates of point e are (5, 4.75)

step 5

find the coordinates point f

x coordinate

fx=ax+delta x*4/> fx=2+8*(8/> fx=6

y coordinate

fy=ay+delta y*4/> fy=4+2*(8/> fy=5

the coordinates of point f are (6,5)

step 6

find the coordinates point g

x coordinate

gx=ax+delta x*4/> gx=2+8*(10/> gx=7

y coordinate

gy=ay+delta y*4/> gy=4+2*(10/> gy=5.25

the coordinates of point g are (7,5.25)

step 7

find the coordinates point h

x coordinate

hx=ax+delta x*4/> hx=2+8*(12/> hx=8

y coordinate

hy=ay+delta y*4/> hy=4+2*(12/> hy=5.5

the coordinates of point h are (8,5.5)

step 8

find the coordinates point i

x coordinate

ix=ax+delta x*4/> ix=2+8*(14/> ix=9

y coordinate

iy=ay+delta y*4/> iy=4+2*(14/> iy=5.75

the coordinates of point i are (9,5.75)

- r3ktforgood ☕

Answer from: Quest

x=6 and x=3

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Which of the following investments will earn the greatest amount of interest? a. $2,400 invested fo...