Eliminate the x terms: Multiply the second equation by 2
-10x+12y=20
Add it to the first equation
10x-4y=-8
-10x+12y=20
——————-
0x+8y=12
y = 1.5
10x-4(1.5)=-8
10x = -2
x = -1/5
Answer:
119 r 9
Step-by-step explanation:
70 mL=25% alcohol
?mL=90% alcohol
90×70÷25
=252 mL
I think do like this....I'm not sure
Hope this help you
X - 3 < = 5
x < = 5 + 3
x < = 8
closed circle on 8 (it is closed because there is an equal sign in the problem)...and since it is less then, it will be shaded to the left.