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salantis [7]
2 years ago
14

In a class, 60% of the students are girls. There are 18 girls in the class.

Mathematics
2 answers:
Ne4ueva [31]2 years ago
7 0

Answer:

There are 45 students and 18 boys in the class

Katarina [22]2 years ago
5 0

Answer:

a. Total of 45 students.

b. 18 Boys.

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Step-by-step explanation:

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Solve the equation for y. Show your work. 6x−2y=4
borishaifa [10]
Answer:
y = 3x - 2
General Formulas and Concepts:
Properties of Equality
Step-by-Step Explanation:
Step 1: Define equation
6x - 2y = 4

Step 2: Solve for y
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5 0
2 years ago
1. Type mmnn using exponents.
kompoz [17]

Step-by-step explanation:

\bold{1.}\\\\\ mmnn=m^2n^2=(mn)^2\\\\\bold{2.}\\\\3x=5+7\\3x=12\qquad\text{divide both sides by 3}\\x=4\\\\\bold{3.}\\\\\dfrac{x}{3}=7\qquad\text{multiply both sides by 3}\\x=21\\\\\bold{4.}\\\\0.5x=12\qquad\text{multiply both sides by 2}\\1x=24\\x=24\\\\\bold{5.}\\\\4x-6=2x+4\qquad\text{add 6 to both sides}\\4x=2x+10\qquad\text{subtract 2x from both sides}\\2x=10\qquad\text{divide both sides by 2}\\x=5

\bold{6.}\\\\3x^2\ for\ x=6\ /\text{put x = 6 to the expression}/\\\\3(6)^2=3(36)=108\\\\\bold{7.}\\\\3y^2+2y\ for\ y=3\ /\text{put y = 3 to the expression}/\\\\3(3)^2+2(3)=3(9)+6=27+6=33

7 0
3 years ago
Read 2 more answers
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