ashtion76
ashtion76 ashtion76
  • 01-03-2021
  • Mathematics
contestada

can someone help me please?
I don't really understand it ​

can someone help me pleaseI dont really understand it class=

Respuesta :

amayakarla012
amayakarla012 amayakarla012
  • 01-03-2021

Answer:

T-shirts= $7.5 and Shorts=$10

Step-by-step explanation:

T-shirts = X

shorts = Y

3x + 2y =42.5

5x + 3y = 67.5

use addition method

5 (3x + 2y = 42.5)

-3 (5x + 3y = 67.5)

15x + 10 y = 212.5

-15x -9y = 202.5. then..

15x - 15x= 0

10y - 9y = y

212.5 - 202.5 = 10 therefore y=10

substitute y into any equation

3x + 2(10)= 42.5

3x +20 = 42.5

3x= 42.5-20

x= 22.5/3

x=7.5

so T= $7.5 and S= $10

Answer Link

Otras preguntas

Differentiate y=(r^2-9r)e^r
what is boost in yeezy boost
COULD SOMEONE HELP ME PLEASE?
who was not free in medieval England
in an after school program, students must choose to either play on the playground or read a book silently. On one cloudy day, 70% of the students chose to play
According to five stars for literary critics what previous work influenced Shakespeare's hamlet
There are 4 times as many used cars in the car dealer ship lot is there a new car there are 120 cars total in the dealership like how many new cars are in the d
Andys total bill for lunch is 20 dollars.the cost of the drink is 15 percent of the total bill and the ref is the cost of the food.what percent of the total bil
What is the number one cause of global warming? a) Animal agriculture b) Increase of carbon dioxide emissions c) Unenvironmental human activity d) None of the a
how to find the product of 9/2 multiplied by -7/4?