Answer:
50 km/h
Step-by-step explanation:
Before the speed adjustments, their speeds were in the ratio 3:2. The difference in their speeds was 10 + 10 = 20 km/h, corresponding to a difference of 3-2 = 1 ratio unit.
Hence the faster car was traveling at 3×(20 km/h) = 60 km/h, and the slower car was traveling at 2×(20 km/h) = 40 km/h. After the speed adjustments, both cars are traveling at 50 km/h.
Answer:
The correct ratio is 7:8, so no, Emma is not correct.
In below formula for arithmetic sequence you can fill in a=7 (start), d=2 (interval) and n=35 (nr terms) and you get
17.5(14 + 34*2) = 1435
Confirmed by a brute-force addition: 7+9+11+13+15+17+19+21+23+25+27+29+31+33+35+37+39+41+43+45+47+49+51+53+55+57+59+61+63+65+67+69+71+73+75=1435
Answer:
(x^3y)/2
Step-by-step explanation:
Answer:
X>-2
Step-by-step explanation:
-4x < 8
You did both side by -4
Note that, when the variable is negative the inequalities sign must change
X>-2
