Please, see the offered solution, note, there are 2 ways in it (a and b)
Answer: x = 9, y = -14
Explanation:
4x + y = 16
2x + y = -2<span>
</span> 4x + y = 16
- 2x + y = -2
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2x + 0 = 18
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2x = 18
x = 9 <<<<< ¯\_(ツ)_/¯ For the value of x
Plug x = 9 into 2x + y = -2
2(9) + y = -2
12 + y = -2
y = -14 <<<<< ¯\_(ツ)_/¯ For the value of y
Answer:
i hated this math in middle school-
Step-by-step explanation:
$27.93
You want to know how much she payed for 1 can. So you divide $12 by 9 cans. For one can, she paid $1.33. Now multiply that by 21 cans.
1.33•21=27.93
85 % of drivers pass the first time.
Calculations:
100%-15%=85%
