Let the ratio of the number of blue to yellow cards be 4:3
since blue has 4 parts and yellow has 3, the total would be 7 equal parts which sum up to 84
--> each part is equal to 12
blue has 4 parts so there are 4*12=48 blue cards in total
Answer:
0.2 is the correct asnwer because you divide 1.8 by 9
Step-by-step explanation:
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Answer:
The factors of 21 are: 1, 3, 7, 21
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42
21 is the Greatest common factor
Step-by-step explanation:
Answer:
41
Step-by-step explanation:
Matrix Multiplication follows a row-column format. In order to compute this, you must be familiar with vector dot products.
With that in mind, lets get straight into it.
The order that matrix multiplication follows means that the terms in the result are filled in left to right, then top to bottom.
Therefore, a21 will be the 3 value that is computed. This is important becuase this allows to directly compute a21, instead of using up a lot of time computing all the values before.
As a21 is located in the bottom row 1st column, we take the dot product of the 2nd row in matrix 1 and the 1 column in matrix two.
So we have:
(7 2) dot (5 3) = 7*5 + 2*3 = 41
Answer:
r= d/2
7/2
3.5
3.5 is the answer
Step-by-step explanation:
