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Yanka [14]
3 years ago
8

On friday , 2 classes went on a feild trip. if the 3 other classes are left at the school, and there are 20 students per class,

how many students are left at the school?
Mathematics
1 answer:
Burka [1]3 years ago
7 0

Answer:

60 students

Step-by-step explanation:

3 classes are left with 20 students per class. To find the number of students, multiply 3*20=60  


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Larry says all
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Answer:

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Step-by-step explanation:

Inequalities like these are solved the same way equations are solved, except when multiplying both sides you flip the less than/greater than sign:

3x + 7 > -x -9

3x + 7 - 7 > -x -9 -7     Subtract 7 from both sides

3x > -x -16

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4x > -16

\frac{4x}{4} > \frac{-16}{4}     divide both sides by 4

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In this case the inequality sign did not have to be flipped since we never multiply both sides by a negative number.

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Solve the equation 3x + 2 = 4x + 5 using algebra tiles. Which tiles need to be added to both sides to remove the smaller coeffic
Anastasy [175]

Answer:

Step-by-step explanation:

Given the expression

3x + 2 = 4x + 5

1. The smaller coefficient of x is 3

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we need to add - 3x to both sides

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Collecting like terms we have

3x-3x+2= 4x-3x+5

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2. The constant on the right side is

5,to remove the constant from the right side of the equation we need to add - 5 to both sides

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