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Alona [7]
2 years ago
14

Sarah was thinking of a number. Sarah halves it and gets an answer of 46.5. What was the original number?

Mathematics
2 answers:
olya-2409 [2.1K]2 years ago
8 0

Answer:

93

Step-by-step explanation:

46.5 X 2 is 93 or 93 ÷ 2 so 93 was the original number

777dan777 [17]2 years ago
6 0

Answer:

93

Step-by-step explanation:

If she halves it she divided it by 2. So, all you have to do is reverse that procss by multiplying by 2. I hope this helps :)

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Solve the system y= 4x + 1 and 3x+2y =13
Irina18 [472]

Given :

{\qquad \sf \dashrightarrow  y= 4x + 1 \: –––– \sf \:  (i)}

{\qquad \sf \dashrightarrow   3x + 2y = 13 \: –––– \sf \:  (ii)}

Now, Substituing the value of y in equation (ii) :

{\qquad \sf \dashrightarrow   \: 3x + 2y = 13   }

{\qquad \sf \dashrightarrow   \: 3x + 2(4x + 1) = 13   }

{\qquad \sf \dashrightarrow   \: 3x + 8x + 2 = 13   }

{\qquad \sf \dashrightarrow   \: 11x + 2 = 13   }

{\qquad \sf \dashrightarrow   \: 11x  = 13 - 2   }

{\qquad \sf \dashrightarrow   \: 11x  = 11   }

{\qquad \sf \dashrightarrow   \: x  =  \dfrac{11}{11}    }

{\qquad \sf \dashrightarrow   \bf \: x  = 1   }

Now, substituting the value of x in equation (i) :

{\qquad \sf \dashrightarrow  y= 4x + 1}

{\qquad \sf \dashrightarrow  y= 4(1) + 1}

{\qquad \sf \dashrightarrow  y= 4 + 1}

{\qquad \bf \dashrightarrow  y= 5}

3 0
2 years ago
Huan's wage is £10.40 per hour l. he receives a 10% pay rise ​
r-ruslan [8.4K]

Answer:

Step-by-step explanation:

10% of 10.40=1.04

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8 0
2 years ago
What is the following shows the factors of 5x^2+17x+6
ElenaW [278]

<span><span>(5x+2)</span><span>(x+3)</span></span>

Explanation:

Find factors of <span>5and 6</span> whose products ADD to 17

It might take a bit of trial and error to find the correct combination of factors.

<span><span>........</span>5 and 6</span>
<span><span>.......</span>↓ ↓</span>
<span><span>........</span>5 2 →1×2=2</span>
<span><span>........</span>1 3 →5×3=<span>15<span>−−</span></span></span>
<span><span>...............................................</span><span>17</span></span>

6 0
3 years ago
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bixtya [17]

Answer:

acceleration of the golf ball will be faster. (  A  )

Step-by-step explanation:

if you DROP a bowling ball vs a golf ball, the bowling ball will drop faster cause it’s heavier. but if you push a golf ball vs a bowling ball with the same force, the golf ball will be faster because it’s lighter. pushing a bowling ball with a lot of force will move it a certain amount, but moving a golf ball with that same force will go way past the bowling ball just cause it’s lighter.

6 0
2 years ago
Which expression is equal to 5^4 ⋅ 5^8?
alex41 [277]

It should be A. You would keep the 5, and the exponent should be 4+8, which is 12.

3 0
3 years ago
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