D and E are the ones that aren’t functions because they use the x-values more then once
She was correct to multiply .75 by .15 to get .1125, but she forgot to add that value to .75 to get the total amount of fabric needed.
Answer:
8,000 in the 8% account
20,000 in the 9% account.
Step-by-step explanation:
x + y = 28000
0.08 x + 0.09 y = 2440
0.08 x + 0.09 (28000 − x) = 2440
0.08 x + 2520 − 0.09 x = 2440
80 = 0.01 x
x = 8000
y = 20000
#13: b
#14: c
#16: c
It is very easy, have a nice day :)
-7/8= -77/88
-5/11= -40/88
-3/8= -33/88
(-77/88)+(-40/88)+(-33/88)= -150/88
