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ozzi
3 years ago
14

A suitcase is pulled feet along a flat sidewalk with a constant upward force of 80 lb at an angle of 23 with the horizontal. Cal

culate the work done.
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
5 0

Answer:

newtons 2nd law of motion

Step-by-step explanation:

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The town recreation department ordered 100 balls and bats for the summer baseball camp. Balls cost $4.50 each, and bats cost $20
oksian1 [2.3K]

Answer:

76 balls and 24 bats

Step-by-step explanation:

Set up a system of equations where x is the number of balls and y is the number of bats:

x + y = 100

4.5x + 20y = 822

Solve by elimination by multiplying the top equation by -20, then combine the equations together:

-20x - 20y = -2000

4.5x + 20y = 822

-15.5x = -1178

x = 76

Then, plug in 76 as x in the first equation to solve for y:

x + y = 100

76 + y = 100

y = 24

So, 76 balls and 24 bats were purchased.

5 0
3 years ago
Read 2 more answers
A rectangular lawn is 65 m long and 34 m wide. Over time, people have walked along a diagonal as a shortcut and have created a s
irina [24]
To calculate the length of the diagonal, use the Pythagorean theorem:
c^2 = a^2 + b^2, where c is the diagonal.
c^2 = 65^2 + 34^2
c^2 = 4225 + 1156
c^2 = 5381
c ~ 73.36
To the nearest tenth of a meter, the diagonal has a length of 73.4 m
3 0
3 years ago
Read 2 more answers
Elena went to a store where you can scoop your own popcorn and buy as much as you want. She bought 10 ounces of spicy popcorn fo
kramer

Answer:

1 ounce costs 0.25$

Step-by-step explanation:

I have no idea what the question is as there is no question but that's the answer for what I think you wanted to know

6 0
3 years ago
Please help me solve the equation<br>3x+10y=48<br>7x+4y=54
agasfer [191]
3x+10y=48
7x+4y=54


multiply the first equation by 2 and the 2nd equation by 5 to remove y
6x+20y=96
35x+20y=270
29x=174
x=6

substitute to any equation
7x+4y=54
42+4y=54
4y=12
y=3

the value of x is 6 and the value of y is 3
8 0
3 years ago
Read 2 more answers
What is the area of a trapezoid ABCD with bases AB and CD , if:<br> AB=10cm, BC=DA=13cm, CD=20cm
aliya0001 [1]

Step-by-step explanation:

to find height :

draw a height from A to CD

height = (13) 2 - 5) 2 = 12 Cm

area = 10+20 /2 X 12= 180 cm 2

7 0
3 years ago
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