What is the value of x in the equation 1 / 5 x - 2 / 3 y equals 30, when y equals 15

x=200

Step-by-step explanation: 1/5x-2/3y=30

1. Substitute y for 15: 1/5x-2/3(15)=30

2. Multiply 2/3 by 15 which is 10

3. Add 10 to 30 because of the negative sign before the -2/3

4. 1/5x=40

5. Multiply both sides by 5 to get 1x=200

6. x=200

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft