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Murrr4er [49]
3 years ago
14

The length of a rectangle is twice the width. If the perimeter of the rectangle is 69 units, find the area of the garden.

Mathematics
1 answer:
8_murik_8 [283]3 years ago
6 0

Answer:

area= 264.5 unit square

Step-by-step explanation:

let the width of the rectangle be x units then the length would be 2x units

perimeter = 2(l+b)= 2(2x+x)=2(3x)=6x

69=6x

x=69/6=11.5units

width is 11.5 units and length is 23 units

area= lxb= 11.5* 23= 264.5 units square

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Simplify, if x = 2 and y = -1: 3(y + 2)^2 + 3x
svet-max [94.6K]

Answer:

9

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

3(y + 2)² + 3x

x = 2

y = -1

<u>Step 2: Evaluate</u>

  1. Substitute:                    3(-1 + 2)² + 3(2)
  2. Add:                              3(1)² + 3(2)
  3. Exponents:                   3(1) + 3(2)
  4. Multiply:                        3 + 6
  5. Add:                              9
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3 years ago
How do graphs and equations reveal information about a relationship between two quantities
fiasKO [112]
Graph and equation both shows the proportional comparison between two quantities

for example, equation y = 4x, this means, the value of 'y' will always be 4 times the value of 'x'

More complex equation such as y = 3x + 5, means that the value of 'y' equals to 5 more triples of value of 'x'

Another example is the conversion graph attached below, it shows the relationship between kilometers and miles. For example, we want to find out how many miles are in 10 kilometers, we would draw a line from the point that shows 10 km towards the graph, then across from the graph to miles, and we'd get a reading of 12 miles.

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Which expression shows the result of applying the distributive property to  12(5y+4) ?
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<span>12(5y+4)
= 12(5y) + 12(4)
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A study was conducted to see if students given extra oxygen prior to taking the SAT could improve their scores. It was found tha
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Answer:

Hypothesis testing of ' significance of difference between means'

Step-by-step explanation:

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Answer:

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