Answer:
5+14=20 is not true
Step-by-step explanation:
5+14=19 not 20
Speed of boat in still water ---- x km/h
speed of current ------ y km/h
distance with the current = 4(x+y)
distance against the current = 5(x-y)
we know that 3.5(x+y) = 70
x+y = 20
but 4(x+y) = 4(20) = 80
then 5(x-y) = 80
x-y = 16
x+y=20
x-y=16
add them
2x = 36
x = 18 , then y = 2
Answer:
Step-by-step explanation:
This problem is a maximization problem
the objective is to maximize profit
let software program be x
and video program be y
the objective function is
60x+45y>P-------1
constrains
300x+200y<400------2
we can further reduce the expressions
3x+2y<4-----2
Answer:
To the left three times
Step-by-step explanation:
1000 has three 0 so you move it 3 to the left. So your answer should be 6.3898.
Hello!
Let's think of this large triangle as a whole. If we add up the angles, we have 115°. The adjacent side to this angle is 9 feet. Let's try finding the opposite side. The tangent deals with these two.
tan115≈2.14
Therefore, x/9=2.14
We multiply both sides by 9 to find x.
x=19.26
Now let's find the length BC and subtract it from 19.26 to find our length. As we will deal with opposite and adjacent sides, we will find the tangent.
tan45=1
This means x/9=1
Therefore, BC=9
Now we can subtract from 19.26
19.26-9=10.26
Therefore, this length is 10.26 feet
I hope this helps!
