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omeli [17]
3 years ago
9

On the Algebra test the number of students who got a grade A was three more than twice the number of students who got lower grad

es. How many A's were there if total number of students in the Algebra class is 24?
Mathematics
1 answer:
svlad2 [7]3 years ago
4 0
X= # students who got lower grades
2x+3= # students with grade A

STEP 1:
Add the two sets above equal to 24.

x + (2x + 3)= 24
combine like terms

3x + 3= 24
subtract 3 from both sides

3x= 21
divide both sides by 3

x= 7 (# students lower than A)


STEP 2:
substitute x value from step 1 to find # grade A students

=2x + 3
=2(7) + 3
=14 + 3
=17 (# grade A students)


CHECK:
x + (2x + 3)= 24
7 + 2(7) + 3= 24
7 + 14 + 3= 24
24= 24


ANSWER: There were 17 students with grade A.

Hope this helps! :)
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Um not fully confident which is funny because imma freshman but i believe you combined all the like terms to get “180 = 23x - 188” and it equals 180 in the end because it’s a straight line so anyways once you solve the problem you should get 16 i believe and if you’re confused just feel free to ask me and i hope i wasn’t too late to answer it
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3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago
Find the area of the rectangle with a length of (x^2-2) and a width of (2x^2-x+2)
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so multiply them together use distributive property
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so
x^2-2 times (2x^2-x+2)=(x^2)(2x^2-x+2)-(2)(2x^2-x+2)=(2x^4-x^3+2x^2)-(4x^2-2x+4)
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Answer:

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