Answer: D = 300 km
Total distance travelled is 300 km
Step-by-step explanation:
Distance = speed × time
The total distance travelled is the sum of the two distance travelled during the phases of speed.
D = v1t1 + v2t2 .....1
Given ;
speed v1 = 60km/hr ; v2 = 120km/hr
Time taken t1 = 1 hr ; t2 = 2 hr
Substituting the given values into equation 1, we have;
D = 60×1 + 120×2 = 60 + 240
D = 300 km
Total distance travelled is 300 km
308 is your answer. (good luck)
I realize why people say that now lol, its because they need more characters before they can turn it in
<span><span><span>−6</span>+14</span>+<span>2<span>(<span>60−<span>9<span>(<span>1+3</span>)</span></span></span>)
</span></span></span><span>=<span>8+<span>2<span>(<span>60−<span>9<span>(<span>1+3</span>)</span></span></span>)
</span></span></span></span><span>=<span>8+<span>2<span>(<span>60−<span><span>(9)</span><span>(4)</span></span></span>)
</span></span></span></span><span>=<span>8+<span>2<span>(<span>60−36</span>)
</span></span></span></span><span>=<span>8+<span><span>(2)</span><span>(24)
</span></span></span></span><span>=<span>8+48
</span></span><span>=<span>56</span></span>
2(x^2-4x+4)=18
2x^2-8x-10=0
(2x-10)(x+1)
X=5,-1