Answer:
There are
five dollar bills and
ten dollar bills.
Step-by-step explanation:
Given:
Selling price of bicycle
.
The friend gave
five dollar bills and
ten dollar bills.
Total number of bills
.
To find: Number of five dollar bills and ten dollar bills the friend gave.
Solution:
The friend gave
five dollar bills and
ten dollar bills and the friend gave
bills in all.
So,
.

Selling price of bicycle
.
So, 
Putting the value of
from equation
in equation
.







Now, putting the value of
in equation
.


Hence, there are
five dollar bills and
ten dollar bills.
I'm pretty sure its B but I would double check before you put the answer in :)
The 5x5 square grid has 6 , 2 x 2 subgrids and the least value of n for which you can be certain that it will have a 2 x 2 subgrid of grey squares is 12.
<h3>What is a Square ?</h3>
A square is a polygon with four sides and all the sides are equal and parallel and all the angle value is 90 degree.
(a) The 5x5 square grid has 6 , 2 x 2 subgrids.
(b) the least value of n for which you can be certain that it will have a 2 x 2 subgrid of grey squares is 12
as it can be understood from the figure 2 that only the last square doesn't have a pair and the rest all does
more than that will be extra but 12 will be enough to make all the grey squares of 2 x 2 subgrid .
To know more about Square
brainly.com/question/14198272
#SPJ1
Answer:
cylinder <3
Step-by-step explanation: