The unit rate of road construction is 2 miles per day.
Step-by-step explanation:
Given,
In days
miles road is constructed.
To find
The rate of road constructed per day
Method
We will apply unitary method to solve it.
Now,
In days
miles road is constructed.
In 1 day the road will be constructed = ÷
miles
= 2 miles
Answer:
<em>29 minutes more</em>
Step-by-step explanation:
Let m represent minutes
changing the statement to algebra, since the second company charges a different rate at night and weekend we have the equation below;
$19.99 + $0.35m > $29.99
Subtract 19.99 from both sides to isolate m and we have;
$19.99 -$19.99 + $0.35 > $29.99 - $19.99
= $0,35m > $10.00
Divide both side by 0.35 to obtain the value of m;
>
= m > 28.57
<em>m ⩾ 29 minutes</em>
<em>The second company's will be twenty nine minutes or more costlier than the first company</em>