To decrease an amount by 30%, what single multiplier would you use?

Mathematics

2 answers:

AURORKA [14]3 years ago

7 0

You would use 0.7................................

tekilochka [14]3 years ago

6 0

If you want to decrease something by 30%, you multiply the number then subtract the result from the original number. However, you can subtract 30% from 100% then convert to a decimal to get a single multiplier.

100% - 30% = 70%

70% = 0.7

So, 0.7 is the answer.

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Find the solution to the syster<br> y = 2x = 5<br> y = X - 2

lana66690 [7]

Answer:

Both of these equations are in slope-intercept form. The slope-intercept form of a linear equation is: y=mx+b

Where m is the y-intercept value.

y=-2x+5

y=-2x+20

The slope of the two equations are: m1=−2 and m2=−2

Step-by-step explanation:

Because the have the same slope it means the lines represented by these two equations are either parallel or are the same line.

The y-intercepts for the two lines are:b1 = 5 and b1=20

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2 years ago

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Andrej [43]

-10/5 or -8/4

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2 years ago

If A(1,2), B(5,-4) and (-3,2) are the vertices of a triangle, which statement holds true?

Zigmanuir [339]

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The correct option is A.

<h3>What is a triangle?</h3>

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The sum of all the angles of a triangle is always equal to 180°.

The length of different sides are:

$AB = \sqrt{(5-1)^2+(-4-2)^2} = \sqrt{16+36} = \sqrt{52}\rm\ units$