(3x-5y=60)
4x+5y=-4
3(8)-5(7.2)=60
4(8)+5(-7.2)=-4
7x=56
÷7. ÷7
x=8
3(8)-5y=60
4(8)+5y=-4
32+5y=-4
-32. -32
5y=-36
÷5. ÷5
y=7.2
Answer:
1) 2
2) 4
11) 3.88
12) 0.01
x=21
Step-by-step explanation:
well, geez - just do the math!
3/7 * 49 = 21
f(x)=11
g(x)=8
f(x)=(2)+9=11
g(x)=4(2)=8
BRAINLIEST PLEASE