Answer:
<h2>
decreasing: (-2, -1)∪(-1, 0) </h2>
Step-by-step explanation:
From x = -2 to x = 0 function is decreasing, but for x= -1 function doesn't exist, so we need to exclude x = -1 from (-2, 0)
Answer:
This survey means that about 14 in every 25 adults in the survey had a smartphone.
Step-by-step explanation:
X=cost of large snack
Y=cost of small snack
X+Y=60
5X+3Y=220
To solve for y, solve x+y=60 for x. Subtract y from both sides so you're left with x=-y+60. You now plug in -y+60 for x in the second equation.
5(-y+60)+3y=220
-5y+300+3y=220
-2y+300=220
-2y=-80
Y=40
40 small snack packs is the final answer
Answer:
-3
Step-by-step explanation:
X+-4x=3
