Answer:
the symbol without a line through it means part of a set, with the line means excluded form
Step-by-step explanation:
4.2x - 1.4y = 2.1 |multiply both sides by 10
42x - 14y = 21 |subtract 42x from both sides
-14y = 21 - 42x |change signs
14y = 42x - 21 |divide both sides by 14
y = 3x - 1.5
Plug in the values to solve this problem.
Hope this helps.
頑張って!
The answer will be A) Mitch has $50 and Mary has $100. Mitch saves $5 per week and Mary saves $3 per week. How long will it be before Mitch has more money than Mary. Hope it help!
Answer:
The answer is the last one.
Step-by-step explanation:
25 - 19 = 6
It is a half and half chance. So, technically it should be 25 heads and 25 tails.