Answer:
Find the sum of the series
∑(4x−5)
such that
1≤x≤7
.
answer is 77
Step-by-step explanation:
Ax=aw-z-y
divide by x
a=awx-z-y
a=awx-zy

total number of students : 1240
For this case, the first thing we must do is define variables.
We have then:
x: number of cabins
y: number of campers
We now write the equation that models the problem:

We know that there are 148 campers.
Therefore, substituting y = 148 in the given equation we have:

From here, we clear the value of x:

Therefore, the number of full cabins is:

Answer:
The number of full cabins is:

The two numbers that add to make twenty and have a difference of 4 are 12 and 8