40 fifth graders take a bus to school. 8x8= 64 so they have you a good fraction to start with to find out how many kids are walking or taking their bike (3/8) all you have to do is multiply 3 and 8 which equals 24 to find the fraction of the amount of kids who take the bus you subtract 3 from 8 which gives 5/8 and to get the answer you multiply 5 and 8 which is 40.
Answer:
5
Step-by-step explanation:
Remember, the rank of a matrix is the number of pivots or number of rows different of zero in the echelon form of the matrix.
Then, if A is a matrix 
the maximum number of pivots that can have is one by row, that is, 5.
Then the maximum rank that A can have is 5.
Answer:
154
Step-by-step explanation:
if you write down all the numbers in a line then you go from 169 and 144 equally to the middle you would reach 154
Answer:
n=5
Step-by-step explanation:
7n-4 = 31
+4 +4
7n = 35
/7 /7
n=5
Answer:
1. 12 boys,
5. 15 hours
6. 36
Im not so sure on the others, Gl!
