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Andrews [41]
1 year ago
12

The percent decrease from 12 to 9 is equal to the percent decrease from 40 to what number

Mathematics
1 answer:
Zina [86]1 year ago
8 0
(12 - 9) / 12 = (40 - x) / 40
3/12 = (40 - x) / 40
40(1/4) = 40 - x
10 = 40 - x
10 - 40 = -x
-30 = -x
30 = x <=== percent decrease from 40 to 30
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Now, we have to round this number to the nearest hundreds place.

The place value to the extreme right of the number is ones, then tens, hundreds, thousands, ten thousands and so on.

So, the digit at hundreds place = 2

Consider the digit to the right of the hundred place which is '8', which is greater than 5.

Therefore, we will add '1' to the digit at hundreds place.

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Answer:

Therefore,

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Step-by-step explanation:

Algebraic Expression:

An algebraic expression is a mathematical expression that consists of variables, numbers and operations.

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Here the Expression is

-7+12x^{4}-5y^{8}+x

So,

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In all there are Four i.e 4 terms in the given expressions.

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2 years ago
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The correlation coefficient for the ages of drivers in a driver safety class and the number of traffic violations they have rece
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