Answer:
A. 9y-8x=23
B. 9y-8x=-23
C. 8y-9x=-23
D. 7y-8x=25
Step-by-step explanation:
Formula: y-mx=b
y=mx+b ------> y-mx=b
Put opposite signs
Ex: y=7x+2 ------> 7x-y=2
Answer:
I belevie its 4
Step-by-step explanation:
Answer:
(1) The sample mean of the offers is 70.0
(2) The sample variance of the offers is 68
Step-by-step explanation:
(1) Sample mean = summation of offers ÷ number of offers = (64+72+66+58+78+82) ÷ 6 = 420 ÷ 6 = 70.0 (to one decimal place)
(2) Sample variance = summation (offers - sample mean)^2 ÷ number of offers = [(64-70)^2 + (72-70)^2 + (66-70)^2 + (58-70)^2 + (78-70)^2 + (82-70)^2] ÷ 6 = (36+4+16+144+64+144) ÷ 6 = 408 ÷ 6 = 68
Answer:
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccyyyyyyyyyyyyyyyyyyyyyyy75gu78b6iii4k88j
Step-by-step explanation:
Answer:
The regular price is $40
Step-by-step explanation:
75% = $30
30 ÷ 75 = 1% = 0.4
0.4 x 100 = 100% = $40