The least common mutiple is 10 for all of them
Answer/Step-by-step explanation:
Exercise 5:
a. 180 pages was read in 5 days
Unit rate = pages per day = 180 pages ÷ 5 = 36 pages per day.
b. Number of pages of the book = 765 pages
Unit rate = 36 pages per day
Number of days to read the book = 765/36 = 21.25
It will take Kirk about 22 days to finish reading the book.
The first property is commutative ( the numbers 38 and 677 are swapped over)
Then we have the associative property ( where the paretheses are moved to get 38 and -38 together)
then the additive inverse ( 38 + (-38) = 0
and finally to get the 677 we use the additive identity property.
Answer:
A:
2(x + 2) + 2(2x - 5) =
2x + 4 + 4x - 10 =
6x - 6
perimeter = 6x - 6
B:
(x+2)(2x - 5) expand the brackets:
2x² - 5x + 4x - 10
area = 2x² - x - 10
C:
area = 6x - 6 = (6 x 5) - 6 = 30 - 6 = 24
perimeter = 2x² - x - 10 = (2 x 5²) - 5 - 10 = (2 x 25) - 5 - 10 = 50 - 5 - 10 = 35
brainliest please? x
Hello!
We will plug in each ordered pair into the equation and see if it works.
A)
0=-9(0)
0=0
True
B)
18=-9(-2)
18=18
True
C)
-9=-9(-1)
-9≠9
False
D)
-27=-9(-3)
-27≠27
False
E)
-18=-9(2)
-18=-18
True
F)
36=-9(4)
36≠-36
False
You answers are A, B, and E.
I hope this helps!
