Answer: 29.3
Step-by-step explanation:
Abby's average after taking 31 quizzes is 76.
Total test scores= 31 × 76 = 2356
After Abby's teacher drops her 3 lowest test scores, her average increases to 81. This means that (31-3)= 28 test scores were used.
Total scores = 28 × 81 = 2268
Sum of Abby's three lowest score
= 2356 - 2268
= 88
Average of the three scores will now be 88 divided by 3
= 88/3
= 29.3
The average is 29.3
88.83 / 21 = 4.23
4.23 is the same number as 423% .
8.23 is <em>423%</em> of 21.
Y=mx+b
M=Slope
B= y-intercept
Your m=-1/4 because you’re going 1 down and 4 right
B=0 because it’s is at the center which is 0
From your B (0) you go 1 down and 4 to the right. Always know your b so you can know what your slope is.
And your slope is a negative