Answer:
13 pencils.
Step-by-step explanation:
Let x be the pens and y be the pencils
Given:
Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95.
Total pens and pencils is 22
So, 
----------------(1)
And he bought all utensils for $11.95. and each pen for 75 cents and pencils for 40 cents.
------------(2)
solve equation 1 and equation 2 for x and y.
From equation 1.
----------------(3)
put y value in equation 2.
Now substitute x value in equation 3.
So, he buy 13 pencils.
4k(3c-10)
factoring:
14ck *2 + 10ck *2 - 16ck - 40k
28ck -16ck - 40k
12ck - 40k
The surface area of the cube is 384 square mm. Hope it help!
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
x = −
9
/25
Decimal Form:
x = −
0.36
I hope this helps! Have a great day!
Answer:
84 is your answer
Step-by-step explanation:
What you are doing is multiplying them together.
87,1/2% put into a calculator comes out to 7/8 or .875.
You will take that and multiply it to 96
7/8*96=84.
