Answer:
The answer is 2-3x=3 cutie.
Step-by-step explanation:
Position in the sequence triangular number relation
1 1 1 = 1*(1+1)/2
2 3 3 = 2(2+1)/2
3 6 6 = 3(3+1)/2
4 10 10 = 4(4+1)/2
5 15 15= 5(5+1)/2
Call n the position in the sequence, then the triangular number is: n(n+1)/2
Answer:
There are 35 adult dogs and 20 puppies
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Step-by-step explanation:
<em>Represent the puppies with P and the Adult dogs with A</em>
Given
Dogs = 55
Required
Determine A and P
First, we need to sum the ratios;
Adult Dogs is then calculated as follows;
Puppies is calculated by subtracting the number of adult dogs from the total
<em>Hence;</em>
<em>There are 35 adult dogs and 20 puppies</em>
First, let's subtract both sides by 4:
|2x - 3| = 13
We can get two different equations from this:
2x - 3 = 13
and
2x - 3 = -13
So:
2x = 16
2x = -10
x = 8, x = -5
The solution set is {8, -5}