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3 years ago

Fill in the blanks to complete the following chart. (Round to the nearest tenth.) You will not use all of the answers.

Mathematics

1 answer:

N76 [4]3 years ago

4 0

Answer:

see below

Step-by-step explanation:

The basic formula for this chart is ...

Percentage = Base × Rate

Dividing by Base or Rate gives two other versions of the same relation:

Rate = Percentage/Base

Base = Percentage/Rate

These are summarized in the chart at the second attachment. Covering one of the cells in the chart tells you how that cell is computed. (See the formulas above.)

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It is convenient to let a spreadsheet do the math. Unfortunately, for this problem there are three different formulas that need to be entered and copied to non-adjacent cells. Even so, IMO, it beats punching numbers on a calculator.

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Svetlanka [38]

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3 years ago

Read 2 more answers

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natulia [17]

Answer:

x= -5

Step-by-step explanation:

Add 5 to both sides

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Answer:

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The graph of y=x^2 -7x+ 12 is a parabola with x-intercepts at

vesna_86 [32]

Answer:

Step-by-step explanation:

$\text{x-intercept is for y = 0}.\\\\\text{We have the function:}\ y=x^2-7x+12.\\\\\text{Put y = 0 and calculate the value(s) of x.}\\\\x^2-7x+12=0\\\\x^2-3x-4x+12=0\\\\x(x-3)-4(x-3)=0\\\\(x-3)(x-4)=0\iff x-3=0\ \vee\ x-4=0\\\\x-3=0\qquad\text{add 3 to both sides}\\\boxed{x=3}\\\\x-4=0\qquad\text{add 4 to both sides}\\\boxed{x=4}$

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