Answer:
-3y < -2/5
Step-by-step explanation:
Multiplied means times
-3y
is less than means <
-3y < -2/5
Answer:
Step-by-step explanation:
your basically multiplying everything in the first parenthesis by everything in the second parenthesis
(x + 4y + z)(x - 7y) =
x(x - 7y) + 4y(x - 7y) + z(x - 7y) =....keep in mind, 4yx is the same as 4xy
x^2 - 7xy + 4xy - 28y^2 + zx - 7zy....combine like terms
x^2 - 3xy - 28y^2 + zx - 7zy <---- your answer
this is the distributive property
16 × (14 - 6) × 3 - 6^2 ÷ 6
parenthesis first
16 × (8) × 3 - 6^2 ÷ 6
exponents next
16 × (8) × 3 - 36 ÷ 6
multiplication and division from left to right
128 *3 -36 ÷ 6
384 -36 ÷ 6
384 -6
378
Answer:
48 cubes
Step-by-step explanation:
<u><em>The complete question is</em></u>
A rectangular prism with a volume of 6 cubic units is filled with cubes with side lengths of 1/2 unit. How many 1/2 unit cubes does it take to fill the prism?
step 1
Find the volume of the cube
The volume of the cube is equal to

where
b is the length side of the cube
we have

substitute


step 2
To find out how many half-unit cubes are needed to fill the prism, divide the volume of the prism by the volume of the cube

$40/12 = unit rate simplify = 10/3
$10/3 per book
18 * 10/3 = $60 for 18 copies