$1170
Given: 6kg rice costs $540
Find: cost of 13kg rice
13 kg rice x ($540 / 6 kg rice)
Units kg rice crosses out and you’re left with $ for units.
(13 x 540) / 6 = $1170
CHECK
13kg rice /6 kg rice = 2.17 bags to make 13kg rice
2.17 bags of 6 kg rice = $1170
So the answer is correct.
The expression x³ - 64 can be rewritten using difference of cubes is; (x - 4)(x² + 4x + 16)
<h3>How to write an expression as difference of cubes?</h3>
Difference of cubes can be rewritten in the form of;
a³ – b³ = (a – b)(a² + ab + b²)
So in this question, we are given;
x³ - 64 = x³ - (4)³
where a = x and b = 4
This gives us;
(x - 4)(x² + 4x + 4²)
⇒ (x - 4)(x² + 4x + 16)
Read more about difference in cubes at; brainly.com/question/2747971
#SPJ1
Answer:
2(5x-2)(5x+2)
Step-by-step explanation:
The answer for the first question is 33.33%.
Reason: The second number (20) is larger than the first number (15) by 5 and 5 is 33.33% the first number.
.
The answer for the second question is 25%, also.
Reason: The first number (15) is smaller than the second number (20) by 5 and it is 25 percent of the second number.
:)
Answer: If this is an equality problem then 6,399 > 2911.
