Question 4
4(2x +5)
What you are going to do is called the distributive property.
First you are going to multiply the 4 and the 2 and you would get 8x.
Second you are going to multiply the 4 and the 5 and you would get 20.
Answer is 8x+20.
Sorry don't know about the other following answers
Let the price of one CD be c.
The 5 CDs cost 5c.
The cost of 5 CDs and a $12 DVD is
5c + 12
(3700000deaths/y)(y/365d)(d/24hr)(hr/60min)≈7.04 deaths/min
Answer:
![x = 1](https://tex.z-dn.net/?f=x%20%3D%201)
![y = -3](https://tex.z-dn.net/?f=y%20%3D%20-3)
Step-by-step explanation:
Given :
........................... equation 1
........................... equation 2
solving by substitution method , substitute
into equation 1 , that is
![7x + 3 (-3x ) = -2](https://tex.z-dn.net/?f=7x%20%2B%203%20%28-3x%20%29%20%3D%20-2)
![7x - 9x = - 2](https://tex.z-dn.net/?f=7x%20-%209x%20%3D%20-%202)
![-2x = -2](https://tex.z-dn.net/?f=-2x%20%3D%20-2)
![x = 1](https://tex.z-dn.net/?f=x%20%3D%201)
substitute
into equation 2 to find the value of y , that is
![y = -3 ( 1 )](https://tex.z-dn.net/?f=y%20%3D%20-3%20%28%201%20%29)
![y = -3](https://tex.z-dn.net/?f=y%20%3D%20-3)
Answer:
![\large\boxed{\large\boxed{33\º}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5Clarge%5Cboxed%7B33%5C%C2%BA%7D%7D)
Explanation:
The order of the letters naming the triangles is relevant. When it is said that <em>triangle ABC is similar to triangle MOP</em>, means that:
Therefore:
- ∡C = 102º (by substitution)
Now, you have two angles of triangle ABC and can find the third one:
- ∡B = 180º - 45º - 102º = 33º ← answer