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Laura established a new flower garden, planting 4 tulip plan

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Joined: 07 Jun 2014
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Laura established a new flower garden, planting 4 tulip plan [#permalink] New post 19 Aug 2018, 03:12
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Question Stats:

100% (00:09) correct 0% (00:00) wrong based on 3 sessions
Laura established a new flower garden, planting 4 tulip plants for every 1 rose plant, and no other plants. If she planted a total of 50 plants in the garden, how many of those plants were tulips?

[Reveal] Spoiler: OA
40

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Re: Laura established a new flower garden, planting 4 tulip plan [#permalink] New post 21 Aug 2018, 11:41
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sandy wrote:
Laura established a new flower garden, planting 4 tulip plants for every 1 rose plant, and no other plants. If she planted a total of 50 plants in the garden, how many of those plants were tulips?

[Reveal] Spoiler: OA
40


Let T = number of tulips planted
Let R = number of roses planted

Laura planted 4 tulips for every 1 rose
In other words, the ratio of tulips to roses = 4 to 1
Or we can write: T/R = 4/1
Cross multiply to get: T = 4R

Laura planted a total of 50 plants in the garden
In other words, T + R = 50

We now have 2 equations and 2 variables:
T = 4R
T + R = 50

When we solve the system (which I'll leave for you to do), we get: R = 10 and T = 40

Answer: 40

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Brent
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Re: Laura established a new flower garden, planting 4 tulip plan   [#permalink] 21 Aug 2018, 11:41
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Laura established a new flower garden, planting 4 tulip plan

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