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Nikitich [7]
3 years ago
8

Plz help

Mathematics
2 answers:
kenny6666 [7]3 years ago
8 0

Let the smaller number be x

So, greater number = 7 more than twice the smaller number

So, greater number = 7 + 2x

Sum of the two numbers = 43

So, 43 = greater number + smaller number

43 = 2x + 7 + x

43 = 3x + 7

Subtract 7 on both sides

43 - 7 = 3x + 7 - 7

36 = 3x

\frac{36}{3}=\frac{3x}{3}

12 = x

Smaller number = 12

Greater number = 2x + 7 = 2(12) + 7 = 31

Artist 52 [7]3 years ago
6 0
31 and 12 are the two numbers,
2(x) + 7
x = 12
this might not be right but I think it is x
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A bolt falls off an airplane at an altitude of 500 m. How long will it take the bolt to reach
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Answer:

t = sqrt(500/4.9) =~ 10.1 seconds/ Answer: 10.1015 seconds (this is approximate)

Step-by-step explanation:

Use 4.9t^2 + v0t = s

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s = 4.9t^2 + v0t = 500

4.9t^2 = 500

t = sqrt(500/4.9) =~ 10.1 seconds

Part A)

v = initial velocity = 0

s = 500 = vertical distance the object travels (from plane to ground)  

Plug in the given values and solve for t

4.9t^2 + v*t = s

4.9t^2 + 0*t = 500

4.9t^2 + 0 = 500

4.9t^2 = 500

t^2 = 500/4.9

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t = sqrt(102.04081632653)

t = 10.101525445522

t = 10.1015

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4 0
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Circle P is tangent to the x-axis and the y-axis. If the coordinates of the center are (r, r), find the equation of the line con
almond37 [142]

Answer:

y=-x+r

Step-by-step explanation:

we know that

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Remember that the equation of the line into slope intercept form is equal to

y=mx+b

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458 (10) +458 (5)   or  10 (400) + 10 (50) + 10 (8) + 5 (400) +5 (50) + 5 (8)

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8 0
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The tength of a picture frame is 12 cm more than twice the width. If the perimeter is 204cm, find the
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Answer:

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Step-by-step explanation:

The perimeter is the measurements of all sides added together. Let's start by dividing the perimeter by 2, so we have the sum of the length and width. This gives us 102cm. Let's call the width <em>x</em>, and the length <em>y</em>. We know <em>y</em> is <em>x</em> times 2 plus 12. (2x + 12) So, we know [x + y = x + (2x + 12)]. So let's solve.

x + y = x + (2x + 12)

102 = x + (2x + 12)

102 = 3x + 12

102 - 12 = 3x + 12 - 12

90 = 3x

90/3 = 3x/3

30 = x

The width is 30cm.

8 0
2 years ago
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