Three consecutive integers have a sum of –21. which equation can be used to find the value of the three numbers? a. x+x+x= -21 b. x+2x+3x= -21 c. x+(x+1)+(x+2)= -21 d. x+(x+2)+(x+4)= -21

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.