Asked by Kristen
Juan, Steve, and Gabriella bought a total of 30 markers at an art store. Juan bought 3 more markers than Steve. Gabriella bought 7 times as many markers as Steve. How many markers did each buy.
Answers
Answered by
Ms. Sue
S = Steve
J = Juan = 3S
G = Gabriella = 7S
S + 3 + S + 7S = 30
9S = 30 - 3
9s = 27
S = 3
J = Juan = 3S
G = Gabriella = 7S
S + 3 + S + 7S = 30
9S = 30 - 3
9s = 27
S = 3
Answered by
Kristen
We thank you Ms. Sue for your response. Unfortunately, this appears to be an equation that my daughter, 4th grade level, (nor I for that matter) are able to decifer to even understand how to answer the problem. Is it possible for you to verbally explain how Kriten would solve this problem? ~mom
Answered by
Ms. Sue
Correction: Juan = 3 + S
That means that Juan had 3 more markers than Steve
Gabriella had 7 times the number of markers as Steve. Gabriella = 7S
S + J + G = 30
Substituting the numbers for the names:
S + S + 3 + 7S = 30
Combine like terms.
9S + 3 = 30
Subtract 3 from each side of the equation.
9s = 27
Divide both sides by 9
S = 3
That means that Juan had 3 more markers than Steve
Gabriella had 7 times the number of markers as Steve. Gabriella = 7S
S + J + G = 30
Substituting the numbers for the names:
S + S + 3 + 7S = 30
Combine like terms.
9S + 3 = 30
Subtract 3 from each side of the equation.
9s = 27
Divide both sides by 9
S = 3
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