Answer:
1043ft
Step-by-step explanation:
1 roll of blue streamer is 94 ft long
1 roll of green streamer is 89ft long
She has 5 rolls of blue streamer and 7 rolls of green streamer.
If 1 blue roll has a length of 94ft, 5 rolls will have a length of 5 × 94
If 1 green roll has a length of 89ft, 7 rolls will have a length of 7 × 89
The total feed of streamer she has to decorate with is calculated as follows:
(5 × 94)ft + (7 × 89)ft = 470 + 623 = 1043ft.
1 ÷ 3 = 3 × 3 = 9
So you would have 9 1/3 chicken pot pie pieces
Question
Charlie is a car salesman. He earns $800 plus a 9% commision on all of his sales for the week. If charlie received a paycheck for $1916 this week, how much were his total sales?
Answer:
<h2>
1240</h2>
Step-by-step explanation:
1916 - 800 = 1116 (commissions)
1116 : 9 * 100 =
1240
Answer:
765 J
Step-by-step explanation:
We are given;
Mass of bucket = 30 kg
Mass of rope = 0.3 kg/m
height of building= 30 meter
Now,
work done lifting the bucket (sand and rope) to the building = work done in lifting the rope + work done in lifting the sand
Or W = W1 + W2
Work done in lifting the rope is given as,
W1 = Force x displacement
W1 = (30,0)∫(0.2x .dx)
Integrating, we have;
W1 = [0.2x²/2] at boundary of 30 and 0
W1 = 0.1(30²)
W1 = 90 J
work done in lifting the sand is given as;
W2 = (30,0)∫(F .dx)
F = mx + c
Where, c = 30 - 15 = 15
m = (30 - 15)/(30 - 0)
m = 15/30 = 0.5
So,
F = 0.5x + 15
Thus,
W2 = (30,0)∫(0.5x + 15 .dx)
Integrating, we have;
W2 = (0.5x²/2) + 15x at boundary of 30 and 0
So,
W2 = (0.5 × 30²)/2) + 15(30)
W2 = 225 + 450
W2 = 675 J
Therefore,
work done lifting the bucket (sand and rope) to the top of the building,
W = 90 + 675
W = 765 J
