Y=400-10d
If he reads 10 pages a day and there is 400 total pages then you plug in an amount of days (d) to find the total amount of days it takes him to read the book.
Answer:
15/4
Step-by-step explanation:
multiply the whole number (3) by the denominator (4), then add the numerator (3) then put that over the denominator to convert any mixed number into an improper fraction.
Answer:
(3n + 4) (n-2)
Step-by-step explanation:
Are you asking to factor this 3n^2 - 2n -8 ?
If so the best way to do this problem is with the X method.
top: 3*(-8)
left: factor of 3*-8 right: factor of 3*-8
bottom: -2
try the factors 4 and -6 because 4*-6 = 3 *-8 = -24
Because notice that 4 + -6 = -2
so:
3n^2 -2n - 8 can be rewritten as 3n^2 -6n + 4n - 8
We should first use Distributive property to factor: 3n^2 -6n + 4n - 8
3n^2 -6n + 4n - 8 = 3n (n - 2) + 4(n - 2)
Now we factor by grouping here : (3n + 4) (n-2)
I factored out the group (n-2)
Therefore: (3n + 4) (n-2) = 3n^2 -2n - 8
A quadrilateral is a shape that has four equal sides.
For example: squares, rectangles, parallelogram
A parallelogram is a quadrilateral with 2 pairs of parallel sides.
A square can't be in the hierarchy under trapezoids, rectangles,or rhombus.
