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sergiy2304 [10]
3 years ago
8

If the sum of a number and one is doubled​, the result is three less than the number. Find the number

Mathematics
2 answers:
Sholpan [36]3 years ago
7 0
So if i am doing this correctly your answer should be this

<span>2(n+1) = n - 3

Hope This Helps!!!!
Have a Good Day!</span>
goblinko [34]3 years ago
3 0
Let the unknown number be x.

<span>sum of a number and one: x + 1
</span>
<span>sum of a number and one is doubled: 2(x + 1)
</span>
<span>three less than the number: x - 3

2(x + 1) = x - 3

2x + 2 = x - 3

x + 2 = -3

x = -5

The number is -5.
</span>
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Plz help me solve and show your work.
xz_007 [3.2K]

Hi there!

\large\boxed{h = \frac{15x}{y}}

Recall the volume of a pyramid is:

V = 1/3(bh)

We are given the volume and side length of the base. Find the area of the base:

A = s²

A = (5xy²)² = 25x²y⁴

Plug in the solved for base:

125x³y³ = 1/3(25x²y⁴)h

To isolate for h, begin by multiplying both sides by 3:

375x³y³ = (25x²y⁴)h

Divide both sides by 25x²y⁴. Use the following exponent property:

xᵃ / xᵇ = xᵃ⁻ᵇ

Thus:

375x³y³ / 25x²4⁴ = 15x/y.

The height must be equal to:

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7 0
2 years ago
Begin by clearly stating the problem; you can copy this from the problem set file. Show how you solved the problem step by step,
iogann1982 [59]

Answer:  13%

Step-by-step explanation:

We know that the formula to find the simple interest :

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Given : Albert borrowed $19,100 for 4 years. The simple interest is $9932.00. Find the rate.

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Now, Substitute all the values in the formula , we get

9932=(19100)r(4)\\\\\Rightarrow\ r=\dfrac{9932}{19100\times4}\\\\\Rightarrow\ r=0.13\ \ \ \text{[On simplifying]}

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3 0
2 years ago
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Elena-2011 [213]

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Step-by-step explanation:

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3 years ago
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UNO [17]

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