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Aleks [24]
2 years ago
13

Gordon was thinking of a number. Gordon doubles it and gets an answer of 90.8. What was the original number?

Mathematics
1 answer:
zalisa [80]2 years ago
8 0

Answer:

45.4

Step-by-step explanation:

Nx2=90.8

Divide both sides by 2

N=45.4

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What algebraic expression could represent the average of 2x, x + 3, and 6x?
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Answer:

(5x = 2 = 3 +8a

Step-by-step explanation:

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4 0
1 year ago
Solve for ttt. 4\left(t+\dfrac14\right) = 34(t+ 4 1 ​ )=34, left parenthesis, t, plus, start fraction, 1, divided by, 4, end fra
Tema [17]

Answer:

t=\frac{1}{2}

Step-by-step explanation:

We want to solve for the value of t in the equation

4(t+\frac{1}{4})=3

Since we are trying to make t the subject of the formula (or isolate t)

Divide both sides by 4

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This gives us:

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Next, we subtract \dfrac{1}{4} from both sides

t+\frac{1}{4}-\frac{1}{4} =\frac{3}{4}-\frac{1}{4}\\t=\dfrac{3-1}{4}=\frac{2}{4}=\frac{1}{2}\\t=\frac{1}{2}

7 0
2 years ago
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It takes a ship 4 hours to cover 420 km with the current and 6 hours against the current. Find the speed of the ship in still wa
KiRa [710]
Let s be the speed of the ship, and c be the speed of the current. 

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Now, against the current, we have
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We solve the equations simultaneously, by adding them together
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The speed of the ship is 87.5 km/hr and the speed of the current is 17.5 km/hr. 
     
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1 year ago
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