Elimination:
7x - 3y = 20
5x + 3y = 16
(add)
12x = 36
÷ 12
x = 3
(5 × 3) + 3y = 16
15 + 3y = 16
- 15
3y = 1
÷ 3
y = 1/3
Substitution:
5x + 3y = 16
- 3y
5x = 16 - 3y
÷ 5
x = 3.2 - 0.6y
5(3.2 - 0.6y) + 3y = 16
16 - 3y + 3y = 16
16 = 16
- 16
6y = 0
÷ 6
y = 0
Sorry the substitution messed up for some reason, I'll fix it after I've answered the other question
It's 7.4 because the 3 doesn't round the 4 up.
Answer:
I can't even find the rational expression
Step-by-step explanation:
Did you forget something?
Answer:
5/6 OR 0.83 (with the three repeating)
Hope that helps!
Step-by-step explanation:
7 is bases number two , I'm not sure it sounds like similar makes more sense , but not sure for 2
