The number is 90.
<h3>
What is the number?</h3>
Percentage can be described as the fraction of an amount that is expressed as a number out of hundred. The sign used to represent percentage is %. Percentages are a measure of frequency.
When the number is decreased, the number becomes smaller. This means that the original number is larger than 81.
The equation that can be used to represent the information in the question is:
(1 - percentage decrease) initial number = 81
(1 - 0.1)x = 81
0.9x = 81
x = 81 / 0.9
x = 90
To learn more about percentages, please check: brainly.com/question/25764815
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Answer:
3) 
Step-by-step explanation:
Answer: The answer is B 0.075 cm
Step-by-step explanation:
Since the drawings is a scale of the original you must use a proportion to solve the desired side. 0.045/.9=w/1.5;w=0.075.
Well, you have to ask the question first.
Answer:
The answer is y = 5x
Step-by-step explanation:
Yes, this equation is a linear equation.
because it has degree 1
<u>Standard </u><u>Form</u>
y = 4x + x
y = 5x
Thus, The answer is y = 5x
<u>-TheUnknownScientist</u><u> 72</u>
