Answer:
12.93
Step-by-step explanation:
26.49-13.56= 12.93
Marcos has 6 nickels and 9 quarters
<em><u>Solution:</u></em>
Let "n" be the number of nickels
Let "q" be the number of quarters
<em><u>Marcos had 15 coins in nickels and quarters</u></em>
Therefore, we can say,
number of nickels + number of quarters = 15
n + q = 15 -------- eqn 1
<em><u>He has three more quarters than nickels</u></em>
Number of quarters = 3 + number of nickels
q = 3 + n -------- eqn 2
Eqn 1 and eqn 2 represents the system of equations
<em><u>Substitute eqn 2 in eqn 1</u></em>
n + 3 + n = 15
2n + 3 = 15
2n = 15 - 3
2n = 12
<h3>n = 6</h3>
<em><u>Substitute n = 6 in eqn 2</u></em>
q = 3 + 6
<h3>q = 9</h3>
Thus Marcos has 6 nickels and 9 quarters
I think it’s this but I’m not sure
For this case, we have that by definition, the triangle similarity theorem related to the angles, establishes that:
- <em>For two triangles to be similar, the angles of one of them must be congruent to the angles of the other triangle.
</em>
On the other hand, we have:
- <em>For a pair of triangles to be similar, it is sufficient to have a congruent angle between the proportional sides.
</em>
In addition, we have the following side theorem (SSS):
- <em>Two triangles that have the three proportional sides are similar to each other.
</em>
ANswer:
Two triangles that have the three proportional sides are similar to each other.
Answer: He has 7 books.
Step-by-step explanation:
9 - 2 = 7
