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alekssr [168]
3 years ago
15

In this fulcrum, the weights are perfectly balanced. How far must the fulcrum be located from the 40 lb. weight if the bar is 9

feet long?

Mathematics
2 answers:
Elis [28]3 years ago
5 0

Answer:

x=5\ ft

Step-by-step explanation:

we know that

The bar is 9 feet long

so

x+(x-1)=9

Solve for x

2x-1=9

2x=10

x=5\ ft

Verify

40x=50(x-1)

substitute the value of x

40(5)=50(5-1)

40(5)=50(4)

200=200 -----> the weights are perfectly balanced

creativ13 [48]3 years ago
4 0
So...we can write eqn as

40x = 50(x-1)
so. -10x=-50
so. x=5

therefore .... the distance of 40 lb will be 5 ft ...answer !!!
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marissa [1.9K]
We can ignore the “ gets the first 200 minutes included” since that part is trying to confuse you.

So: 50+x(0.05)=C
M>C
5 0
3 years ago
Need help finding PT
Fantom [35]
C-26.5 is the answer I think hope it helped
4 0
3 years ago
Mrs Galicia gave her sisters $3000 each to invest. The investment will last 8 years. The table shows what each sister did with t
Vilka [71]

Michelle's investment balance after 8 years is $10,790.48.

Kristen's investment balance after 8 years is $3,770.55.

Gabriella's investment balance after 8 years is $24,780.42.

Judy's investment balance after 8 years is $3618.62.

The person with the highest amount of money at the end of the 8 years is Gabriella. If I were to choose one of the investment options, I would choose Gabriella's option.

<h3>What are the formulas that can be used to determine the balance of the sisters?</h3>

The formula that can be used to determine the future value of the investment with compounding is:

FV = P (1 + r)^nm

Where:

  • FV = Future value
  • P = Present value
  • R = interest rate / number of compounding
  • m = number of compounding
  • N = number of years

Future value with continuous compounding =  : A x e^r x N

Where:

  • A= amount
  • e = 2.7182818
  • N = number of years
  • r = interest rate

<h3>What is Michelle's balance after 8 years?</h3>

Future value with monthly compounding = $2000 x ( 1 + 0.035/12)^(12 x 8) = $2645.18

Future value with continuous compounding: 1000 x e^0.018 x 8 = $8,145.30

Total = $8,145.30 + $2645.18 = $10,790.48

<h3>What is Kristen's balance after 8 years?</h3>

Future value with quarterly compounding = 2500 x (1 + 0.012 / 4)^(4 x 8) = $2,751.50

Future value with quarterly compounding = 500 (1 .0225)^(8x4) = $1019.05

Total = $3,770.55

<h3>What is Gabriella's balance after 8 years?</h3>

$3000 x e^0.032 x 8 = $24,780.42

<h3>What is Judy's balance after 8 years?</h3>

Future value with exponential increase = 1050 x (1.015)^8 = $1,182.82

Future value with biannual compounding = 1950 x (1 + 0.028/2)^(8 x 2) = $2435.80

Total = $3618.62

To learn more about future value, please check: brainly.com/question/18760477

4 0
3 years ago
What is the solution set of{x|X&lt;-3} n {xl x&gt; 5)?
dsp73

Answer:

C) Solution set of{x|X<-3} n {xl x> 5) is an the empty set.

Step-by-step explanation:

Here, the solution set is given as : set of  {x| x < -3 } ∩   {x l x > 5)

Now, defining the each set , we get

{x| x < -3 }   = ( .... -6,-5,-4 ,-3)  = P

and the SET  {x l x > 5} = (5,6,7,........ )  = Q

Now, by taking the intersection of two sets,we get

P ∩ Q = NULL SET as they don not have any element in common.

⇒ {x| x < -3 } ∩   {x l x > 5} is an empty set

Hence, solution set of{x|X<-3} n {xl x> 5) is an the empty set.

6 0
3 years ago
Convert − 6 7to a decimal. Go out 3 decimal places and round as appropriate.
Sholpan [36]

Answer:

-0.85714285714

Rounded answer:

-0.86

Step-by-step explanation:

8 0
3 years ago
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