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3 years ago

When a number is decreased by 7% the result is 66. What is the original number to the nearest tenth?

Mathematics

1 answer:

Lilit [14]3 years ago

3 0

Answer:

61.7

Step-by-step explanation:

Let the number be x

% increase in the number : 7

Thus , actual increase in number will be 7% of x = 7/100 of x = 7x/100

Thus, new number with 7% increase = x+ 7x/100

given that value of new number with 7% increase is 66

Thus,

x+ 7x/100 = 66

=> (100x+7x)/100 = 66

=> 107 x = 66*100

=> x = 6600/107 = 61.682

Thus, original number is 61.682

but we have to find the number to nearest tenth .

original number is 61.7

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mariarad [96]

Answer:

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Step-by-step explanation:

here is what i got, i hope it helps!

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3 years ago

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Snezhnost [94]

Answer:

Step-by-step explanation:

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4 years ago

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BlackZzzverrR [31]

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2 years ago

Read 2 more answers

Each pair of polygons is similar. Find each missing side measure. two polygons 12 on top 5 on bottom second polygon 48 on top x

Firlakuza [10]

Answer:

$x = 20$

Step-by-step explanation:

Given

First Polygon:

$Top = 12$

$Bottom =5$

Second Polygon

$Top = 48$

$Bottom =x$

Required

Find x

Since both polygons are similar, then:

$Ratio = Top:Bottom$

For the first:

$Ratio = 12:5$

For the second

$Ratio = 48:x$

Equate both ratios

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Express as fraction

$\frac{12}{5} = \frac{48}{x}$

Cross Multiply

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4 0

3 years ago

Another one for yall

evablogger [386]

2 solutions

As there are 2 variables namely x and y.

No solution

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Option A

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Option D

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