Find the x and y intercepts c) x + 3y - 12=0

1 answer:

7 0

To get x intercept：
let y=0，x➖12=0，x=12
so x intercept point （12，0）
To get y intercept：
let x=0，3y➖12=0，y=4
so y intercept point （0，4）

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the sides of a rectangle are the ratio 2:5. (for every 2cm of the width, the length is 5cm) the perimeter of the rectangle is 70

viva [34]

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Ratio
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Width : Length
2 : 5

Let x be the scale factor

Width : Length
2x : 5x

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Form equation and solve x
------------------------------------------------------------------------------------
Perimeter = 2(Length + Width)
70 = 2(5x + 2x)
70 = 2(7x)
70 = 14x
14x = 70
x = 5

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Find Length and Width
------------------------------------------------------------------------------------
Length = 5x
Length = 5(5)
Length = 25

Width = 2x
Width = 2(5)
Width = 10

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Answer: Length = 25 cm, Width = 10 cm
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4 0

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Jovie is maintaining a camp fire. She has kept the fire steadily burning for 10 hours with 15 logs. She wants to know how many h

tester [92]

Answer:

6 hours

Step-by-step explanation:

We can use ratios to solve

10 hours x hours

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15 logs 9 logs

Using cross products