Answer: Circle = 5 Triangle = 2 Square = 6
Step-by-step explanation: 5 + 2 = 7 2 + 6 = 8 6+2 =8, 8 + 5 =13
Answer:
Step-by-step explanation:
Let the number of blue marbles be x
The number of green marbles = 3x - 2
Total marbles= 18
x + 3x -2 = 18
4x - 2 = 18
4x = 18+2
4x = 20
x =20/4
x =5
The number of blue marbles = 5
The number of green marbles = 3*5 - 2 = 15 -2 = 13
Answer:
6-3= 3 so 3*Y= answer
Step-by-step explanation:
(3x^2 + 9x) / ( x^2 -2x -15)
Factor both polynomials
(3x)(x+3) / (x-5)(x+3) = 3x/(x+5)
The simplified form is 3x/(x+5)
The restriction for the variable is x ≠ -3 (this is because you can only simplify the factor x-3 if its value is not zero).
Answer:
area of the original square = 36 in²
Step-by-step explanation:
given data
one side is increased = 9 inches
other side is decreased = 2 inches
area of the resulting rectangle = 60 in²
solution
we consider here x as the length of any one side
and
longer side of the resulting rectangle = x + 9
and
the shorter side x - 2
so that area of this rectangle is (s+9) × (s-2) = 60 in²
standard form of equation is x² + 7x - 18 = 60 .....................1
it will be
x² + 7x - 78 = 0
(s+13) (s-6) = 0
so that here x = -13
and x = 6
here we Discard x = -13 because the side length cannot be negative.
so x = 6
and area of the original square = 36 in²
