1.x+y=-7 y=x+1 a. substitution method

b. elimination method

2.x-y=-7 x+5y=-7
a. substitution method

b. elimination method​

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

Which statement justifies why angle ebc measures 90?

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal