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noname [10]
3 years ago
14

What is the value of x so that the ordered pair (x, 1) is a solution to the equation 3x - y = 17?

Mathematics
1 answer:
Lisa [10]3 years ago
4 0
3x-y=17
3x-(1)=17
3x=18
18/3
x=6
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PLEASE HELP I WILL GIVE EXTRA POINTS
Evgen [1.6K]

Answer:

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Step-by-step explanation:

A relation is a function if each input gives exactly one output. There is one price for each number of pounds, so the relation is a function.

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<em>Additional comment</em>

Relations expressed in terms of ordered pairs or tables can be identified as "not a function" if any input (x) value is repeated. Relations expressed as a graph will be "not a function" if any vertical line intersects the graph at more than one point. (This is called "the vertical line test.")

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6 0
2 years ago
If you bought something for $372.60 including an 8% tax, what was the price before the tax?
Dvinal [7]

Answer:

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Step-by-step explanation:

<u>Let the price before tax be x, then we have:</u>

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  • x + 0.08x = 372.60
  • 1.08x = 372.60
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7 0
2 years ago
Plz solve the 7th question immediately ....Help me......
Lynna [10]

Answer:

The value of x is 8cm. The length of 3 sides are 8cm, 15cm and 17cm.

Step-by-step explanation:

Using Pythagoras' Theorem, a²+b² = c² :

Let a be x cm,

Let b be x+7 cm,

Let c be 2x+1 cm

x² + (x+7)² = (2x+1)²

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Substitute the x value into the length of a,b and c :

a = x

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b = x + 7

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= 15 cm

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= 17 cm

3 0
3 years ago
Another equation for y = 8x + 7
mart [117]
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