Answer:
16, 100
Step-by-step explanation:
A perfect square is a number that can be achieved by multiplying a number by itself.
Example: 100 = 10 x 10, so it is a perfect square
2 is not a perfect square because it has no factors that can be multiplied with each other to equal 2. An easy way to check is to use the square root function on your calculator.
If the result is a whole number then it's a perfect square.
Answer:
Answer:
x=3 and y=1
Step-by-step explanation:
Let's solve your system by substitution.
x=3y;2x+4y=10
Step: Solvex=3yfor x:
x=3y
Step: Substitute3yforxin2x+4y=10:
2x+4y=10
23y+4y=10
10y=10(Simplify both sides of the equation)
10y
10
=
10
10
(Divide both sides by 10)
y=1
Step: Substitute1foryinx=3y:
x=3y
x=(3)(1)
x=3(Simplify both sides of the equation)
Answer:
x=3 and y=1
Answer:29.15
Step-by-step explanation:
You just divide 21.20 by 8 then multiply
Answer:
x=1
Step-by-step explanation:
First find a common denominator between 7 and 4 which is 28, Multiply both equations by 28 eliminating the denominators so now you have theses two equations: 4(2x + 12) = 7(3x + 5) distribute these equations to get:
8x + 48 = 21x +35 now you want to get the x's on one side so 8-21 = -13 which as an equation so far would be -13x + 48 = 35 now do 35-48 = -13 so you can have 13x alone on one side. Your final equation now before you solve is
-13x = -13 the divide -13 by -13 to get 1.
Hope this helps you understand it better
I believe the answer is 40%
Not entirely sure, hope I helped though!
