Answer:
b = 8
Step-by-step explanation:
Look at picture.
Cel mai puțin, cel mai mare? Aici este o formă:
873,926, 203,620, 43,998, 13,562, 3,504
Sper că acest lucru ajută un pic
<em>1 Cancel m.</em>
12i=c*m/s
<em>2 Use rule a*b/c = ab/c</em>
12i=cm/s
<em>3 Multiply both sides by s.</em>
12is=cm
<em>4 Divide both sides by 12.</em>
is=cm/12
<em>5 Divide both sides by i</em>
s=cm/12/i
<em>6 Simplify cm/12/i</em>
s=sm/12i
The average speed of the truck is calculated by dividing the total distance traveled in a span of the total time given. From the given above, the total distance traveled is
total distance = 203 mi + 243 mi = 446 mi
and the total time it took for the whole trip is
total time = 3.5 h + 4.5 h = 8 h
The average speed is therefore,
average speed = 446 mi/8 h = 55.75 mi/h
Thus, the answer is letter A.