Answer:
unbalanced force not balanced
Regular price= x times of sale price
26=x times 19.50
divide both sides by 19.50
1.33333333333333333=x
so it is 1.33333 times the sale price or 4/3
Answer:
A) 0.0498
B)0.2451
C) 0.2549
Step-by-step explanation:
Total number of cards N = 52
A) Number of picture cards including the king, Queen ,jack = 12
P(picture cards) = (12/52)*(11/51)
P(picture cards) = 0.0498
B) Number of red cards ( hearts and diamonds) = 26
P( red cards) = (26/52)*(25/51)
P(red cards) = 0.2451
C) Number of black cards ( Spaders and clubs) = 26
P( one red and one black cards) = (26/52)*(26/51) = 0.2549
The guess-and-test strategy may be made easier by using the choices.
A. 38 sixth graders ----> 57 - 38 = 19 . There are 19 seventh graders. This option already satisfy the condition that the number of sixth graders should be twice that of the seventh graders. There is no need to test for the remaining choices. The answer is letter A.
