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iren [92.7K]
3 years ago
11

Find the PERCENT of change. 20 dogs to 5 dogs

Mathematics
1 answer:
aliya0001 [1]3 years ago
3 0

Answer:

75%

Step-by-step explanation:

20-5=15 - change in numbers

15/20×100%= 75%

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Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
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Answer:

26

Step-by-step explanation:

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If you add the digits in a two-digit number and multiply the sum by 7, you get the original number. If you reverse the digits in
erik [133]
I got 42.......................

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X^2 - 10x + 24 = 024
Ivahew [28]

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x=0,10

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Rita is hiking along a trail that is 13.8 miles long. So far she has hiked along one-tenth of the trail.
vichka [17]

Rita has hiked 1.38 miles so far.

Step-by-step explanation:

Given,

Total length of the hiking trail = 13.8 miles

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4 0
3 years ago
Membership to a music club costs $165. Members
dimulka [17.4K]

Answer:

11 music lessons.

Step-by-step explanation:

We know that membership costs $165 and members pay $25 per music lesson.

So, we can write the following expression:

165+25m

The 165 represents the one-time membership fee and the 25m represents the cost for m music lessons.

We know that non-members pay no membership fee but their cost per lesson is $40. So:

40m

Represents the cost for non-members for m music lessons.

We want to find how many music lessons would have to be taken for the cost to be the same for both members and non-members. So, we can set the expressions equal to each other:

165+25m=40m

And solve for m. Let's subtract 25m from both sides:

165=15m

Now, divide both sides by 15:

m=11

So, at the 11th music lesson, members and non-members will pay the same.

Further Notes:

This means that if a person would only like to take 10 or less lessons, the non-membership is best because there is no initial fee.

However, if a person would like to take 12 or more lessons, than the membership is best because the membership has a lower cost per lesson than the non-membership.

And we're done!

5 0
3 years ago
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