Answer:
x = 28
Step-by-step explanation:
Let the total number of students = x
x/7 + 3x/7 + 2x/7 + 4 = x If that is all there is. If it isn't the problem can't be done. Combine like terms.
x(1 + 3 + 2)/7 + 4 = x
x (6/7) + 4 = x Subtract 6x/7 from both sides
4 = x - 6x/7
4 = 7x/7 - 6x/7 Combine
4 = 1/7x Multiply both sides by 7
4*7 = 7x / 7
x = 28
Answer:
3x + 3
Step-by-step explanation:
You would subtract 3/8-2/8, which equals 1/8. For drawing a model draw fraction strips to help.
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Answer:
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(1 / 4) - (1 / 10) = 0.15
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Calculate definition, to determine or ascertain by mathematical methods; compute: to calculate the velocity of light.
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