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Zanzabum
3 years ago
11

80 percent of x is equal to 100 What is x?

Mathematics
2 answers:
mariarad [96]3 years ago
5 0
125 is the answer :))))))))
Stella [2.4K]3 years ago
4 0

Answer:

125

Step-by-step explanation:

80\%  \: of  \: x = 100 \\  \\ 0.8x = 100 \\  \\ x =  \frac{100}{0.8}  \\  \\ x = 125

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A line is defined by the equation y = 2/3x - 6 The line passes through a point whose y-coordinate is 0. What is the x-coordinate
IRINA_888 [86]
X=9
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6 0
3 years ago
Janice receives $.40 per pound for 1 to 99 pounds of aluminum cans he recycles. he receives $.50 per pound if you are cycles mor
Ilya [14]

Answer:

M=\left\{\begin{matrix}0.4x &x\leq99 \\ 0.5x &x>100 \\ \end{matrix}\right.

Step-by-step explanation:

<u>Function modeling</u>

Real-life situations often require the help of mathematics to model numerically what happens when the variables involved can change. It could even be used to predict some expected outcomes from those models.

The problem states Janice receives $.40 per pound when he recycles less or equal than 99 pounds of aluminum. If x is the number of recycled pounds, then the amount of money he receives is

M=0.4x

We also know that if he recycles more than 100 pounds of aluminum, the pay increases to $0.5 per pound. In that case, the amount of money is

M=0.5x

This is a case where the function is defined differently depending on the conditions of the input variable x. It's called a piecewise function. The function can be written as

M=\left\{\begin{matrix}0.4x &x\leq99 \\ 0.5x &x>100 \\ \end{matrix}\right.

Note the function is not well constructed because there is a gap for x=100 where M is not defined. If we establish that for 100 pounds the payment is $0.5, then the second piece would include x=100

5 0
2 years ago
Annual insurance is 1,000 face value.
satela [25.4K]

Answer:

The correct answer is A.

Step-by-step explanation:

  • Premium for Company A :

face value = 1.86 , charges are 20% more for smokers

⇒ Charges = 20% of 250000 = $50000

Total charge = Charge × face value

                     = 50000 × 1.86 = $93000

  • Premium for Company B :

face value = 1.86 , charges are 18% more for smokers

⇒ Charges = 18% of 250000 = $45000

Total charge = Charge × face value

                     = 45000 × 1.86 = $83700

  • Premium for Company C :

face value = 2.07 , charges are 25% more for smokers

⇒ Charges = 25% of 250000 = $62500

Total charge = Charge × face value

                     = 62500 × 2.07 = $129375

  • Premium for Company D :

face value = 2.25 , charges are 15% more for smokers

⇒ Charges = 15% of 250000 = $37500

Total charge = Charge × face value

                     = 37500 × 2.25 = $84375

Hence, The option A. is correct that is Aaron is paying the smallest premium possible with company B



8 0
3 years ago
Read 2 more answers
Quadrilateral LMNO is a rectangle. Find MN.
Cloud [144]
(4x-1)=(5x-8)
x=7

4(7)-1= 27

5(7)-8= 27

So the answer is 27

<span>MN = 27</span>

3 0
3 years ago
Read 2 more answers
Diego is building a kitchen table and a coffee table. The legs of a kitchen table must be twice the height of a coffee table and
muminat
The answer is B as the coefficient represents the number of legs
6 0
3 years ago
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