Answered

IDNLearn.com provides a user-friendly platform for finding answers to your questions. Get the information you need quickly and accurately with our reliable and thorough Q&A platform.

X=5y.          y=10x+20

 Help please

Sagot :

Cristinmncidn
y=10x+20
y=10×5y+20
y=50y+20
-20=50y-y
-20=49y
y=-20/49

Answer:

x = -2.04

y = - 0.408

Step-by-step explanation:

this is a solve by substitution problem. you know what x is from the first equation so you plug that into the second equation and solve for y. then when you know y you can plug y back into any equation to find x.

y=10(5y)+20 (substitute x)

y=50y+20 (subtract 50y from both sides)

-49y=20 (divide each side by -49)

y= -0.408

x=5(-0.408) (plug y in)

x= -2.04

We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. IDNLearn.com is your source for precise answers. Thank you for visiting, and we look forward to helping you again soon.