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Darya [45]
3 years ago
9

What is the value of X in the following: 7x-8 = 14+9x

Mathematics
1 answer:
LekaFEV [45]3 years ago
4 0

Answer:

x = -11

Step-by-step explanation:

7x-8 = 14+9x

7x - 8 - 7x  -14 = 14 + 9x -7x -14

-22 = 2x

x = -11

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A round silo is 55 feet tall and has a 24 foot radius. How high would a load of 38000 cubic feet of grain fill the silo?
VARVARA [1.3K]

Find the volume of the silo.

The formula is: Volume =  PI x r^2 x h

Replace volume with the volume of grain and solve for h:

38000 = 3.14 x 24^2 x h

38000 = 3.14 x 576 x h

38000 = 1808.64 x h

Divide both sides by 1808.64

h = 38000 / 1808.64

h = 21.01

The grain would be 21.01 feet ( round to 21 feet.)

6 0
3 years ago
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Artyom0805 [142]
We can use Triangle Inequality Theorem, the length of the third side of a triangle must always be between (but not equal to) the sum and the difference of the other two sides.

4.1 - 1.3 < x < 4.1 + 1.3
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7 0
2 years ago
6. Marcus sold 6 pizzas. Sue sold 4 pizzas.
mestny [16]

Answer:

6*$10= $60

4*$10=$40

60+40= $100

$100

Step-by-step explanation:

5 0
3 years ago
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Gary deposits $1,500 into each of two savings accounts. Account I earns 5% annual simple interest. Account II earns 5% interest
hodyreva [135]

Answer:

  • $3623.26

Step-by-step explanation:

<u>Given</u>

  • Each deposit = $1500
  • Interest rate= 5%
  • Time = 4 years
  • Compound number = annual

<u>Simple interest account</u>

  • B = 1500*(1 + 4*0.05) = 1500*1.2 = $1800

<u>Compound interest account</u>

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<u>Total balance</u>

  • $1800 + $1823.26 = $3623.26

7 0
3 years ago
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