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Alika [10]
2 years ago
9

Henry was thinking of a number Henry halves it and gets a an answer of 12.4 what was the original number

Mathematics
1 answer:
jeka942 years ago
3 0
Answer: 24.8
Explanation: If Henry is halving a number, that means he's dividing it by 2, getting two halves. You would get the original number by undoing that division, or multiplying the product by 2.
2 x 12.4 = 24.8
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attashe74 [19]
No. 0.54 is equal to 0.540

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3 years ago
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I really don't understand this
RoseWind [281]

Answer:

-1

Step-by-step explanation:

The mean is the sum of all values divided by the amount of values.

We take the sum of all the numbers:

-3 + -8 + 12 + -15 + 9

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1 + -15 + 9

10 + -15

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We then divide the sum by how many number we have (we are given 5 numbers):

-5/5 = -1

Therefore, our mean is equal to -1.

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Ryanne is 14. Her brother’s age is three more than half her age. How old is her brother?
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8 0
2 years ago
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erica [24]

225-49x^2

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Carter is solving for x by the process of completing the square for the following
Ksenya-84 [330]

Answer:

The number that goes in place of the question mark is 2.

Step-by-step explanation:

Let's solve it!

3x² + 12x - 24 = 0

First we can factor 3 out of each term:

x² + 4x - 8 = 0

Now we'll add 12 to both sides to complete the square:

x² + 4x + 4 = 12

And finish it off:

(x + 2)² = 12

So the answer to the question is 2

Bonus:

We can also now solve this for x:

(x + 2)² = 12

x = √12 - 2

x = 2√3 - 2

x ≈ 2 × ±1.732 - 2

x ≈ 1.464, -5.464

3 0
2 years ago
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