Question

Three sisters run a landscaping business. They charge
$260 for each job. If the oldest sister earns 50
percent more than the middle sister, and if the
youngest sister earns 50 percent less than the oldest
sister, how much does each sister earn per job?

Pleaseeeee help!!! Urgent. These are worth 60% of my grade

Answer 1

Answer:

The amount of money the oldest sister earns per job is $120

The amount of money the middle sister earns per job is $80

The amount of money the youngest sister earns per job is $60

Step-by-step explanation:

Let

x -----> amount of money the oldest sister earns per job

y -----> amount of money the middle sister earns per job

z -----> amount of money the youngest sister earns per job

we know that

50  percent more means ----> 100%+50%=150%=150/100=1.50

50  percent less means ----> 100%-50%=50%=50/100=0.50

so

$x+y+z=260$ -----> equation A

$x=1.50y$ ----->$y=x/1.5$ ----> $y=(2/3)x$ -----> equation B

$z=0.50x$ -----> equation C

substitute equation B and equation C in equation A and solve for x

$x+(2/3)x+0.50x=260$

Multiply by 6 both sides to remove the fraction

$(6x+4x+3x)=(6)260$

$13x=1,560\\x=120$

Find the value of y

$y=(2/3)x$ -----> $y=(2/3)120=80$

Find the value of z

$z=0.50x$ ----> $z=0.50(120)=60$

therefore

The amount of money the oldest sister earns per job is $120

The amount of money the middle sister earns per job is $80

The amount of money the youngest sister earns per job is $60

Answer 2

Answer:

The oldest sister earns $120.

The middle sister earns $80.

The youngest sister earns $60.

Step-by-step explanation:

Three sisters run a landscaping business. They charge  $260 for each job. If the oldest sister earns 50  percent more than the middle sister, and if the  youngest sister earns 50 percent less than the oldest sister, the oldest sister earns $120, the middle sister earns $80, and the youngest sister earns $60.