Answer:
45
Step-by-step explanation:
The two students didn’t take each bonus question because several people already had done it
9514 1404 393
Answer:
x = 8
Step-by-step explanation:
Assuming the figure is a parallelogram, the diagonals bisect each other. That means ...
3x -11 = x +5
2x = 16 . . . . . . . add 11-x to both sides
x = 8 . . . . . . divide by 2
The boat rates are 21 mph and 3 mph.
to find the speed you rate times time equals the distance.
so you do,
10 × r = 210
the speed equals 21mph
70 × r = 210
the speed equals 3mph
my guess is the boat is going 21 mph and the current is 3 mph
Hope this helps
Answer:
5 more than twice a number
2x + 5
.
is the same
=
.
8 less than 3 times the number
3x -8
.
2x + 5 = 3x -8
13 = x
x = 13
.
Check to see if this is right.
.
2x+5 = 2(13)+5 = 31
3x -8 = 3(13)-8 = 31
right.
.
Answer: The number is 13.
.
Done.