Two cyclists start at the same point and travel in opposite directions. One cyclist travels 4 faster than the other. If the two cyclists are 220 kilometers apart after 5 hours, what is the rate of each cyclist?

35.2 and 8.8

Step-by-step explanation:

1. cyclist a travels 4 parts

2. cyclist b travels 1 part

3. cyclist a travels 176 kilometers

4. cyclist b travels 44 kilometers

5. rate of cyclist a is 35.2 km/hr

6. rate of cyclist b is 8.8 km/hr

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

my guess would be b and d, but i didn’t actually get out the pen and paper. lol