Answer: 7 books
Step-by-step explanation:
Start by subtracting 26 and 5 which gives you 21
Then you want to divide 21 and 3 which leaves you with 7
Answer:
5-8 is +3
8-14 is +3*2
14-26 is 3*4
26-50 is 3*8
which means 50 to the next number is 3*16, which is 48
48+50 is 98
Step-by-step explanation:
Answer: 
Step-by-step explanation:
divided by 
is the same thing as multiplying by 
.
The equation we get is:
With this equation, we can factor each equation:
We can cancel out like terms since they would be dividing each other:
12x=x^2-64
you have to do quadratic formula
Answer:
96 in
Step-by-step explanation:
If the midpoints of the sides are joined to form the smaller triangle, then the perimeter of the smaller triangle is half the perimeter of the greater triangle, because the sides of the smaller triangle are midlines of the greater triangle. By the triangle's midline theorem, each triangle's midline is half the side to which this midline is parallel.
So, if the perimeter of 6th triangle is 3 inches, then the perimeter of 5th triangle is 6 inches, the perimeter of 4th triangle is 12 inches, the perimeter of 3rd triangle is 24 in, the perimeter of 2nd triangle is 48 in and the perimeter of the initial triangle is 96 in
