Answer:
The number of wreaths Alaina sells is 9 .
Step-by-step explanation:
As given
Alaina is selling wreaths and poinsettias for her chorus fundraiser.
Wreaths cost $27 each poinsettia cost $20 each.
If she sold 15 poinsettias and made $543.
Let us assume that the number of wreaths Alaina sells = x
As the number of poinsettias Alaina sells = 15
Than the equation becomes
27x + 15 × 20 = 543
27x + 300 = 543
27x = 543 - 300
27x = 243
x = 9
Therefore the number of wreaths Alaina sells is 9 .
Answer: 
Step-by-step explanation:
You can use the Method of substitution.
Substitute the equation 
into the equation 
and then you must solve for the variable x:
Apply Distributive property:
Subtract 12 from both sides of the equation and then add the like terms. Then you get:
We can definitely help you find the perimeter if you give us the shape and dimensions of the figure.
Xo,
Coug.
Answer:
20 games
Step-by-step explanation:
Lets work backwards; *Adding what he gave away or lost*
-Alex started with 16 video games
-Add the games gave to his brother (+2)
-Add the games he sold (+3)
-The number is 3/4 of his games
-Subtract the games he traded with hector (-1/4)
Equation: 16+2+3-6= 3/4 X (variable) *You can choose other than X*
21-6 = 15
15 = 3/4
Take the reciprical of 3/4 which is 4/3 and multiply it by both sides
4/3 x 15 = 3/4 x 4/3
4/3 X 15 = 20!
ALEX STARTED WITH <em>20 GAMES!</em>
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Answer:
There are 6/5 white, 2 green, and 14/5 black
Step-by-step explanation:
Think of it like this.
First we add up everything.
3x+5x+7x = 6kg
15x=6
We find x and plug it in to the equation.
x=2/5
3*2/5=6/5 (6/5 is white)
5*2/5=2 (2 is green)
7*2/5=14/5 (14/5 is black)
There are 6/5 white, 2 green, and 14/5 black
