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Nezavi [6.7K]
3 years ago
15

He difference of two numbers is 50. twice one number equals three times the other. find the numbers.

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
6 0
X-y=50 and 2x=3y 
x=y+50 so 2(y+50) = 3y 

2y+100=3y
y=100

x-100=50
x=150

so our numbers are 150 and 100 

150-100=50 and 150 is 3*50 and 100 is 2*50 so fits all requirements!

hope this helps you! thank you!
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Step-by-step explanation:

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A toy rocket is launched vertically from 5 feet above ground level with an initial velocity of 112 feet per second. The height h
Masja [62]

Answer:

Step-by-step explanation:

a)The height h after t seconds is given by the equation h(t)=-16t^2+112t+5.

Where 5 represents 5feet above the ground and this is the height from which the rocket was launched.

The equation is a quadratic equation. The plot of this equation on a graph would give a parabola whose vertex would be equal to the maximum height travelled by the rocket.

The vertex of the parabola is calculated as follows,

Vertex = -b/2a

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So the rocket will attain maximum height at 3.5 seconds.

It will also take 3.5 seconds to reach the ground. This means it will take a total of 3.5 seconds + 3.5 seconds

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c = -95

t = [-b+/-√b^2-4ac]/2a

t = [ -112 +/-√112^2-4×-16×-95]/16 × -2

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7 0
3 years ago
Mario invests £2000 for 3 years at 5% per annum compound interest. Calculate the value of the investment at the end of 3 years.
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3 years ago
Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hu
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Answer:

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<em>The graph is missing; however, the question can still be solved</em>

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