A common denominator is when 2 fractions have the same denominator and a common multiple is when two multiples have at least 1 number alike. They are alike because they need to have a number in common and they are different because a common denominator has to do with fractions and a common multiple has to do with multiples.
Answer:
Number of R marbles=3.
Number of G marbles=5
Number of B marbles=2
Number of W marbles=1
after this then you add the marbles together ,
which will give you 11.
number of marbles\ total number of R marbles
3÷11
Approximately 1.143 L of peroxide should be added to the original solution.
Answer:
x=5, x=-9
Step-by-step explanation:
I am assuming the "x+1" is squared since there is more than one answer.
x+2=7
x+2=-7
x=5, x=-9
Answer:
C and D
Step-by-step explanation:
Given
x² + 2x = 3 ( subtract 3 from both sides )
x² + 2x - 3 = 0 ← in standard form
Consider the factors of the constant term (- 3) which sum to give the coefficient of the x- term (+ 2)
The factors are + 3 and - 1 , since
3 × - 1 = - 3 and 3 - 1 = + 2 , then
(x + 3)(x - 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 3 = 0 ⇒ x = - 3 → D
x - 1 = 0 ⇒ x = 1 → C
