You need to draw the triangle DEF with a right angle at E. Angle D = 40 and DE = 100 m. Once you have marked up your triangle, you can use cosine to find DF.
Answer:
18 since you have 13nd 3 that equal
Answer:
400 Cards
Step-by-step explanation:
Before we find out how many cards Tammy needs to give to Quilian to have the same number of cards, we first need to find how many cards they currently have.
Let x = Quilian's Cards
Let 2x = Tammy's Cards
Now we can use the equation:
x + 2x = 2400
This represents both Tammy and Quilian's cards together.
Now we can solve for Quilian's cards first.
x + 2x = 2400
![\dfrac{3x}{3}=\dfrac{2400}{3}](https://tex.z-dn.net/?f=%5Cdfrac%7B3x%7D%7B3%7D%3D%5Cdfrac%7B2400%7D%7B3%7D)
![x=800](https://tex.z-dn.net/?f=x%3D800)
Now that we know that Quilian has 800 cards, we can safely assume that Tammy would have:
2x = 2(800) = 1600 Cards
Now that we know how many cards both of them have we simply need to subtract the number of cards that Tammy has until we reach 1/2 the amount of the total amount.
2400 / 2 = 1200
1600 - 1200 = 400 Cards
So Tammy would have to give Quilian 400 cards to make them have the same number of cards.
First, we need to use the distributive property to simplify the expression. So, that means we have to multiply the 4 by all of the integers and variables inside the parentheses.
If done correctly, your expression should be 6+12x-8+5
Next, we should combine all of the constant terms (just numbers without variables), also known as combining like terms.
If done correctly, your expression should be 12x+3.
This matches answer B. 12x+3