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romanna [79]
3 years ago
10

A lamp is on sale, and its price is reduced from $80 to $50. What is the percent of decrease?

Mathematics
2 answers:
fredd [130]3 years ago
7 0
It's 37% put 80-37% and it will give u 50
leonid [27]3 years ago
5 0
\frac{30}{80} is the fraction of decrease. Converting this to a fraction with a denominator of 100, we get the fraction; 
\frac{37.5}{100}
Now we just take the numerator of the number to get the percent, which is the solution. 

37.5%


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Find the total surface area of a trapezoidal prism.
Ostrovityanka [42]
Split the trapezium into a rectangle and a triangle and work out the areas of them.
4x6=24
(2x4)/2=4
Area of trapezium= 28
There are 2 trapeziums, which makes 56.
The back of the shape is 4x14=56.
The top of the shape is 6x14=84.
The underside of the shape is 8x14=112.
The front rectangle is 14x4.47= 62.58.

As them all together= 56+56+84+112+62.58=370.58.

Total surface area=370.58.

Hope this helps :)
4 0
3 years ago
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Which of the following expressions is 8x + 16 not equivalent
yKpoI14uk [10]

10x-2x-20+4 is incorrect

5 0
4 years ago
Homework help, please
Vinvika [58]
Start the line at 3 on the y-axis (vertical). then go down two boxes and to the right three & make a mark at that point. keep going down two and over three until the end of the graph. then just connect the marks.
4 0
3 years ago
Which of the following values would complete the ordered pair if the point is on the graph of f (x) = -3x + 2 ?
Scrat [10]

Answer: the y-coordinate that completes the point is 5.


Explanation:


An ordered pair (x, y) indicates the x-and-y coordinates of a general point, where x is the input value of a function and y is the output value.


The output value is y = f(x) and must be found applying the rule (function) to the given input value.


In this case the rulte is f(x) = - 3x + 2, and the input value, x,  is - 1 (the first value of the ordered pair).


This is the mathematical procedure:

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5 0
3 years ago
Read 2 more answers
Thank you for the person that answers this :)
Ivenika [448]

Answer:

g(x) = - 3^x

Step-by-step explanation:

G is a reflection across the x axis of the function of f(x)

g(x) = −f(x)

g(x) = - 3^x

6 0
3 years ago
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