Answer:
how would you classify this triangle? remember you need two names.
Four children average is 15.25 so ages must add to 61
61-12-16=33
11 and 22 go into 33
Youngest is 11
It would be: $60.00 - ($46.42+$21.05)
$60.00 - $67.47 = -$7.47
Answer:
28
Step-by-step explanation:
I guessed it right on hegarty maths and this was the answer
Let, the speed of boat = x
Speed of current = y
So, x + y = 280/7
x + y = 40 ---- first equation
x - y = 280/14
x - y = 20
x = 20 + y
Substitute this value of x in first equation,
20 + y + y = 40
2y = 40 - 20
y = 20/2
y = 10
Substitute this in first equation,
x + 10 = 40
x = 30
In short, Speed of Boat = 30 mph, & speed of current = 10 mph
Hope this helps!