Answer:
$200
Step-by-step explanation:
What you have to do is round the earnings so $37.38=$40, $20.46=$20, $49.84=$50, $87.22= $90. Then add them together 40+20+50+90=200
Answer:
x = 1
y = 2
Step-by-step explanation:
3y + x = 7 first equation
-2y + 4x = 0 second equation
multiplying by -4 the first equatión
-4(3y + x = 7)
-4*3y -4*x = -4*7
-12y -4x = - 28
and sum the second equation:
-12y - 4x = -28
- 2y - 4x = 0
-14y - 0 = -28
-14y = -28
y = -28/-14
y = 2
from the first equation:
3y + x = 7
3*2 + x = 7
6 + x = 7
x = 7 - 6
x = 1
Check:
from the second equation:
4x - 2y = 0
4*1 - 2*2 = 0
4 - 4 = 0
As an example, 534 can also can also be written as:
- five hundred thirty four
-500+30+4
(if you're still confused, feel free to comment and I will help you with the others)
