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poizon [28]
3 years ago
14

David is twice as old as rick. The sum of Ricks age and davids age is 81. How old is Rick?

Mathematics
2 answers:
VLD [36.1K]3 years ago
6 0
Rick is 27 years old. Pretend D is David and R is Rick

D+R=81

D=2R

2R+R=81  ---> 3R=81 ---> 81/3=R   R=27   3(27)=81 TRY IT!
allsm [11]3 years ago
3 0
The answer is 40.5 hoped I helped
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{ 5x - y = 5<br> { 5x - 3y = 15<br> solve the system using substitution
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Answer:

Not sure sorry,but can you please help me on the following:

Step-by-step explanation:

Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the squares share one side with the rectangle. The total area of the constructed figure is 120 cm2. What is the perimeter of the rectangle?

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3 years ago
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the second longest bridge in the world, the tianjin grand bridge, is 373,000 feet long. Its length is 167,700 feet less than the
Mademuasel [1]
If something is 167,700 feet less than something then the value of the longer object would be the that much more than the length of that shorter object. In this case it would be 373,000 + 167,700 = 540,700 ft.


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4 0
3 years ago
A. Plot the data for the functions f(x) and g(x) on a grid and connect the points.
labwork [276]

Answer:

  a) see the plots below

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Step-by-step explanation:

a) a graph of the two function values is attached

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c) At x ≥ 1, the slope of f(x) is greater than the slope of g(x), and the value of f(x) is greater than the value of g(x), so the curves can never cross for x > 1. Similarly, for x ≤ 0, the slope of f(x) is less than the slope of g(x). Once again, f(0) is greater than g(0), so the curves can never cross.

In the region between x=0 and x=1, f(x) remains greater than g(x). The smallest difference is about 0.73, near x = 0.545, where the slopes of the two functions are equal.

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3 years ago
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3 0
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What is the yield on a corporate bond with a $1000
White raven [17]

The yield on the corporate bond of a face value of $1000 is 7.77%.

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The percentage discount is the discount given on a product as compared to the given discount on 100 rupees.

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