Hello Alondra,
To solve this problem, you have to write a proportion using the ratios formed by the similar triangles.
Or proportion can be:
x/(x+2) = 10/15
Cross multiply to solve it:
10x + 20 = 15x
20 = 5x
4 = x
The value of x is 4.
I hope this helps,
MrEQ
Answer:
R is a partial order
Step-by-step explanation:
The relation is reflexive
That is to say, aRa
The relation is antisymmetric, if aRb and bRa, then a=b
The relation is transitive, if aRb and bRc, then aRc
25*8.14=?
Multiply the cost of the book per person ($8.14) by the number of people (25).
Answer:
Step-by-step explanation:
1. AC ≅ EC 1.Given
2. ∠ACB ≅ ∠ECD 2. Vertically opposite angles are congruent.
3. BC ≅ DC 3. Given
4.ΔACB ≅ Δ ECD 4. Side Angle Side Congruent
5. AB ≅ ED 5. CPCT {Corresponding part of congruent triangles}
Firstly, the order of operations is as follows: PEMDAS or parentheses, exponents, multiplication, division, addition, then subtraction.
All of these are done in the exact order given above.
For example, given the equation (4 x 7) + (6 / 2) - 3^2 = ?
1. Parentheses
- Solve the equations within the parentheses first.
(4 x 7) + (6 / 2) - 3^2 = 28 + 3 - 3^2
2. Exponents
- Second, if there are any exponents, solve this.
28 + 3 - 3^2 = 28 + 3 - 9
3. Mulltiplication
4. Division
5. Addition
28 + 3 - 9 = 31 - 9
6. Subtraction
31 - 9 = 22
Answer: 22.
Hope this helps.
