Answer:
The equation can be y = -7x+11
Answer:

Step-by-step explanation:
The sum of N consecutive natural numbers is given by:

We need to find the sum of the natural numbers between 12 to 38.
To calculate the required sum we have F=12, L=38, but we don't have the value of N.
From 12 to 38 there are 38 - 12 + 1 = 27 natural consecutive numbers, thus N=27.
Substituting in the formula:




Answer:
4 miles
Step-by-step explanation:
<u>Walking:</u>
Distance = d miles
Rate = 4 mph
Time = t hours

<u>Biking:</u>
Distance = d miles
Rate = 10 mph
Time
hours (convert minutes to hours)

Hence,

Therefore, the distance to friend's house is

and the total distance of the round trip is

The answer is 240 simply multiply 12 x 20