Answer:
The answer is B. 
Step-by-step explanation:
...
Answer:
× 
= 
Step-by-step explanation:
×
To solve the above, we need to follow the steps below;
4k+2 can be factorize, so that;
4k +2 = 2 (2k + 1)
k² - 4 can also be be expanded, so that;
k² - 4 = (k-2)(k+2)
Lets replace 4k +2 by 2 (2k + 1)
and
k² - 4 by (k-2)(k+2) in the expression given
×
×
(2k+1) at the numerator will cancel-out (2k+1) at the denominator, also (k-2) at the numerator will cancel-out (k-2) at the denominator,
So our expression becomes;
Therefore, × =
Answer:
62.5 oz
Step-by-step explanation:
We can use the ratio proportion method:
x:50::6.25:5
x = (50x6.25)/5
OR a more simple method is to do this:
5 gallons of milk require 6.25 oz. How many oz of powder do I need to get 10x that amount? Since 50 is 10x5, you do the same thing for 6.25, and get 62.5
7-5*14=62
The equation above is how you would write it with a variable.
The number is 14.
This is because if you do 14 times 5, the answer is 70. Then If you subtract from that, it would be 62.
You can also do 62+7, which is 70, and then divide that by 5 and you will still get 14.
Answer:
9
Step-by-step explanation:
We have to solve in order to find out if Sam is correct
Remember PEDMAS:
For Multiplication, division and addition, subtraction, do what appears first left to right
Parenthesis
Exponent
Division
Multiplication
Addition
Subtraction
16 - 18 + (2+1)+2^3
Parenthesis first: 2+1 = 3
16 - 18 + 3 + 2^3
Exponent next: 2^3 = 8
Subtraction (it's on the left) : 16-18 = -2
Addition: -2 + 3 = 1
Addition : 1 + 8 = 9
<em>Sam is not correct, the answer is </em><em>9, </em><em>not 16.</em>
Hope this helps :)
Have a great day!
