2(4/3w+w) = 28”
(7/3w)=28”/2
3(7/3w) = 14”(3)
7w=42”
w=6"
Formula for perimeter is 2L + 2w = perimeter
2L + 2(6”) = 28”
2L = 28” - 12”
2L = 16”
L = 16”/2
L= 8”
Area = L(w)
Area = 8”(6”)
Area = 48 square inches
You can tell an equation is a function<span> because every element in the domain has only 1 element in the range
For instance, lets take this set. (2,3)(4,5)(6,7)
The domain is 2,4,6 and our range is 3,5,7 for ever range there is only one unique range that goes with it.
Now, lets take this set. (2,4)(2,4)(3,5)
Here our domain is 2,2,5 and our range is 4,4,5
Here we can see that both 2 points to 4 so this is not a function. </span>
Answer:
y=5x (your equation)
y=60 (your answer)
Step by step explanation:
You are given two numbers, 6 and 30. Since 6 goes into 30, 5 times, then y(which is equal to 30) is equal to x(which is equal to 6) multiplied by 5, so you get your equation,
Y=5X
then you have to solve for y, so just substitute
Y=5(12)
And simplify
Y=60
And there’s your answer
Well first you substitute -3 for y and then subtract 12 from both sides of the equation and it should look like -15=-3x. Then divide 3 on both sides and you should end up getting 5=x.