Answer:
x = 2.4; y = 3.2
Step-by-step explanation:
y = 3x - 4
2x + y = 8
2x + 3x - 4 = 8
5x - 4 = 8
5x = 12
x = 12 / 5
x = 2.4
y = 3(2.4) - 4
y = 7.2 - 4
y = 3.2
208 4/7 +201 3/4 =
1456 / 7 + 804/4 = 409
-------------------------------------------------------
20 1/6 - 15 3/5 =
121 / 6 - 78/5 = 137 /30
9 - c = -13
Take away 9 from both sides to isolate the -c:
-c = -13 - 9
-c = -22
Multiply both sides by -1 to get +c:
-1 × -c = -1 × -22
c = 22
Therefore your answer is c = 22. :)
Answer:
B) 31.5
Step-by-step explanation:
Base*height/2
Answer:
$16.54
Step-by-step explanation:
First step we need to do is to find the bill without the 15% tips:
95.11 = 1.15x
x = $82.70 is the original bill
Now we can add the 20% tips and multiply it into the original:
82.70 x 1.2 = $99.24 is the new bill
To find out how much you tipped:
99.24 - 82.7 = $16.54 is your new tip
