Answer:
tax difference = 3.4 - 1.1 = 2.3$
Step-by-step explanation:
tax on the book = 12.95 × 8.5% = 1.1
tax on the game = 39.90 × 8.5% = 3.4
Answer= (7x - 4)(x - 3)
Work=
You’re looking for 2 numbers that add to -4 and multiply to -21.
-7 + 3 = -4
-7 x 3 = -21
So it’s (x - 4)(x - 21)
Divide both by 7, because it is attracted to the x squared.
Remember: if a number is not divisible by 7, the 7 attaches to the x
Answer= (7x - 4)(x - 3)
If the speed of the stream is x
Time is given by d/r , where r is the rate and d is the distance;
Rate for upstream = (15-x) mph and that of down stream is (15 +x) mph
The time taken will be the same;
Thus; 2/(15-x) = 4/(15+x)
cross multiplying;
30 +2x = 60 -4x
6x = 30
x =5
Therefore the rate of the river is 5 mph
Answer:
B. 1/13
Step-by-step explanation:
52/4=13. 4/52=1/13