25(6) + [8(6-s)] = t, where s = number of hours and t = total.
Answer: 420
<u>Step-by-step explanation:</u>
7 appetizers and 10 entrees and 6 desserts
7 x 10 x 6 = 420
1. 550 pages left
55×4=220+330=550
2. 10 hours
330÷55=6+4=10
Answer:
(-6,-3)
Step-by-step explanation:
go do to -6 then over to -3
a)
Let t represents number of years after 1900
so that means for 1900, value of t is 0
We are given point as (0,55)
and it says that life expectancy increases by 0.2
so that means slope,m=0.2
equation of line is y=mt +b
or y=0.2t +b
now we use point (0,55)
55 =0.2(0) +b
55 =0+b
55= b
so b=55
plug it back into the equation,we get
y=0.2t +55
b)
We are given y=73
so we plug it into the equation we got in part a and solve for t
y=0.2t +55
73 =0.2t +55
73-55 =0.2t
18 =0.2t
18/0.2 =t
90 =t
so t=90
This means the birth year =1900+t =1900+90 =1990
