Answer:
1st one: 360
2nd one: 260
3rd one: 210
4th one: 72
Step-by-step explanation:
here are the actual answers since the other person who "answered" is clearly just hungry for points
Answer:
x = -5
, y = 0
Step-by-step explanation:
Solve the following system:
{4 x + 7 y = -20 | (equation 1)
2 x - 5 y = -10 | (equation 2)
Subtract 1/2 × (equation 1) from equation 2:
{4 x + 7 y = -20 | (equation 1)
0 x - (17 y)/2 = 0 | (equation 2)
Multiply equation 2 by 2/17:
{4 x + 7 y = -20 | (equation 1)
0 x - y = 0 | (equation 2)
Multiply equation 2 by -1:
{4 x + 7 y = -20 | (equation 1)
0 x+y = 0 | (equation 2)
Subtract 7 × (equation 2) from equation 1:
{4 x+0 y = -20 | (equation 1)
0 x+y = 0 | (equation 2)
Divide equation 1 by 4:
{x+0 y = -5 | (equation 1)
0 x+y = 0 | (equation 2)
Collect results:
Answer: {x = -5
, y = 0
14/1 x 3/5 = 42/5 which then equals 8 1/20
4000000+400000+8000+700+30
You don't have to put 0's in expanded form for example if the problem yo need in expanded form is 4309 you would do...
4000+300+9
I Hope this helped!
Have A Nice Day!
:)
