Answer:
x=5 y=-6
Step-by-step explanation:
3x+y=9 ------eqn1
y=4-2x -------eqn2
using substitution
put y=4-2x into eqn1
3x+4-2x=9
x=5
put x=5 into eqn2
y=4-2(5)
y=4-10
y=-6
Answer:
2,250.
Step-by-step explanation:
Add all of the bills together. It says the minimum, so in order to pay all of the bills, you'll need 2,250.
Surprise, there 8 letters.
So, 8*7*6*5*4*3*2*1= 40, 320
Regroup terms:
y - 2/9 ≤ 5/9
Add 2/9 to both sides:
y ≤ 5/9 + 2/9
Simplify 5/9 + 2/9 to 7/9:
y ≤ 7/9
The answers is 72........
