Answer:
x= 10
Step-by-step explanation:
45-15=30
30/3=10
a(2a-3(1-a))+5(a-a^2)
distribute the inner most parenthesis
a( 2a -3+3a))+5(a-a^2)
combine like terms
a(5a-3) +5(a-a^2)
distribute both sets of parenthesis
5a^2 -3a +5a-5a^2
combine like terms
5a^2-5a^2 -3a+5a
2a
A+B: the matrix with same dimension a A and B, the element in row i and column j is: Aij+Bij
Same for A-B, but with Aij-Bij
Nicole used only a fraction of her ribbon to wrap the present
the length of ribbon she used is 6 feeet
so lets name the length of the ribbon she had originally as X
the fraction of X she used was - 3/8 of X
so we can write the following equation

when of function is used we multiply

3X = 6*8
3X = 48
X = 16
therefore length of the original ribbon piece Nicole had was 16 feet
Answer:
Step-by-step explanation:
