A1050 page textbook needs to be typed in x hours. lisa can type 15 pages in an hour and whitney can type 12 pages in the same amount of time. which of the following shows the expression that models this problem?

a: 1050/x = 12/x + 15/x
b: x/12 + x/15= x/1050
c: 15+12= x/1050
d: 27 = 1050/x

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

Which function has the domain x> -11?