Plug in the numbers and solve:
8.5(<u>3</u>) + 7.9(<u>4</u>) = <u>25.5</u> + 31.6
= <u>57.1</u>
y=4x+40
x represents the number of minutes
y is the total
40 because he already graded 40 papers, and 4x because that's how many phred grades times the number of minutes
Answer:
option a is right.
Step-by-step explanation:
because u can also check by putting the value of x = 5.25 .it satisfies both sides.
Answer:
11/16
Step-by-step explanation:
P(TTHH) = 4C2*(1/2)^4 = 4!/2!*2!*(1/2)^4=6/16
Total Probablity = 1/16 + 4/16 + 6/16
=11/16
