Since that angle all together is 180, 100 is 2z-10 and z is 55
Answer:
54
Step-by-step explanation:
63 x 2 = 126
180 - 126 = 54
Hello,
Let's assume v=the normal bicycling speed with no wind
and t the same amount of time...
60=(v+2)*t (1)
48=(v-2)*t (2)
(1)/(2)==>60/48=(v+2)/(v-2)
==>5(v-2)=4(v+2)
==>5v-4v=8+10
==>v=18 (mi/h)
<span>20 + 30 × 1
= </span><span>20 + 30
= 50</span>
