Answer:
(64,86.5)
Step-by-step explanation:
find the case where he gets 70 and the case where he gets 79
if his average is 70:
(75+62+85+2x)/5=70
(222+2x)/5=70
222+2x=350
2x=128
x=64
if his average is 79:
(75+62+85+2x)/5=79
(222+2x)/5=79
222+2x=395
222+2x=395
2x=173
x=86.5
Answer:
2 days late
Step-by-step explanation:
Find the words Mrs.hilt read
2010 x 21 = 42210 words
Find the money of 21 books
21 x 4.95 = $103.95
Answer:
its the second one -3(x-y)
(2,-4) is new reflected coordinates
