Answer:
A
Step-by-step explanation:
It isn’t because if you do the vertical line test and try to put vertical lines all throughout the graph, two dots will touch the same line.
9/2 = 81/a....9 kids meals to 2 adult meals = 81 kids meals to a adult meals
cross multiply
9a = 2(81)
9a = 162
a = 162/9
a = 18...so there were 18 adult meals
ratio is : 81/18
Answer:
A. 2x+21
Step-by-step explanation:
distribute 3 through the parentheses then it gives you 6x-6x+21+2x so do 6x-6x=0 giving you 21+2x or 2x+21
Answer:
n ≥ -9
Step-by-step explanation:
Let n = the number
8 <em>less than</em> a number means "n – 8", but
8 <em>less</em> a number means "8 – n," so
8 – n ≤ 17 Subtract 8 from each side
-n ≤ 9 Multiply each side by -1
n ≥ -9
<em>Note</em>: When we multiply by a negative number, we must reverse the inequality.
<em>Check:</em>
Try n = -8.
8 – (-8) ≤ 17
8 + 8 ≤ 17
16 ≤ 17
<em>True</em>.
Answer:x=90° and y=45
Step-by-step explanation: