400
Correct me if im wrong*-*
Answer:
x=4
y=-3
Step-by-step explanation:
3x+4y=0
2x+5y=7
Change 3x+4y=0 into y= -3/4x
so substitute for y
2x-15/4x=7
-1 3/4x = 7
x=-4
substitue x for y and get
-3/4 * 4
y=-3
Answer:
$44.03
Step-by-step explanation:
<u>Payment due:</u>
<u>19% tip:</u>
<u>Total payment:</u>
$ 44.03 to be paid in total including 19% tip.
Use a calculator.
(23/13.8)-18=-16.333=(-16)-(1/3)
Answer:
2790 college students
Step-by-step explanation:
30 to 2
15 to 1
186 times 15
equals 2790 students