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Natalka [10]
3 years ago
12

7th grade class enrollment went from 80 students to 60 students. What was the percent decrease?

Mathematics
2 answers:
kherson [118]3 years ago
7 0
25% 25% is 20 and 20 is how much decreased out of 80.
Cloud [144]3 years ago
5 0

Answer:

25% decrease

Step-by-step explanation:

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Profit P(x), is the difference between revenue, R(x), and cost, C(x), so P(x)=R(x)-C(x). Which expression represents P(x), if R(
siniylev [52]

Answer:

P(x)= x ^4-3x^3+x^2-4    

Step-by-step explanation:

Given data

R(x) = 2x ^4-3x^3+2x-1

c(x)=x^4-x^2+2x+3

We know that

P(x)=R(x)-C(x)

Hence

P(x)= 2x ^4-3x^3+2x-1-(x^4-x^2+2x+3)

open bracket

P(x)= 2x ^4-3x^3+2x-1-x^4+x^2-2x-3

Collect like terms

P(x)= 2x ^4-x^4-3x^3+x^2-2x+2x-3-1    

P(x)= x ^4-3x^3+x^2-4    

4 0
3 years ago
What is f(-5) if f(x) = |2x-1| + 10?
Alex777 [14]
Substitute x = -5
|2* -5 -1| + 10
|-10-1| + 10
21
8 0
3 years ago
From the top of a 52 m tall lighthouse, a sailboat is sighted at an angle of depression of 47°
Vesnalui [34]
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4 0
3 years ago
Is -60 greater or least than 60
Lilit [14]

Answer:

less

Step-by-step explanation:

Negatives are less than positives. Have a great day! <3

3 0
2 years ago
Read 2 more answers
Given: 5x + 3 &gt; 4x + 7.<br><br><br><br> Choose the graph of the solution set.
Natali5045456 [20]

Answer:

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so the answer will be the second

Step-by-step explanation:

7 0
3 years ago
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