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jeka57 [31]
3 years ago
7

Jaidee and Willie each improves their yards by planting rose bushes and geraniums. They bought their supplies from the same stor

e. Jaidee spent $84 on 3 rose bushes and 12 geraniums. Willie spent $120 on 8 rose bushes and 6 geraniums. Find the cost of one rose and the cost of one geranium
Mathematics
1 answer:
stiks02 [169]3 years ago
3 0

The cost of one rose bush is $12 and cost of one geranium is $4.

Step-by-step explanation:

Let,

Cost of one rose = x

Cost of one geranium = y

According to given statement;

3x+12y=84    Eqn 1

8x+6y=120    Eqn 2

Multiplying Eqn 2 by 2

2(8x+6y=120)\\16x+12y=240\ \ \ \ Eqn\ 3

Subtracting Eqn 1 from Eqn 3

(16x+12y)-(3x+12y)=240-84\\16x+12y-3x-12y=156\\13x=156\\

Dividing both sides by 13

\frac{13x}{13}=\frac{156}{13}\\x=12

Putting x=12 in Eqn 1

3(12)+12y=84\\36+12y=84\\12y=84-36\\12y=48

Dividing both sides by 12

\frac{12y}{12}=\frac{48}{12}\\y=4

The cost of one rose bush is $12 and cost of one geranium is $4.

Keywords: linear equation, subtraction

Learn more about subtraction at:

  • brainly.com/question/1506379
  • brainly.com/question/1522572

#LearnwithBrainly

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