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Greeley [361]
3 years ago
7

My friend joop got 14 totts and elentines for about $72. Totts for $8 each and some elentines for $3 each.

Mathematics
1 answer:
STatiana [176]3 years ago
7 0

Answer:

  • x +y = 14
  • 8x +3y =72

Step-by-step explanation:

The variables are defined, so we only need to express the given relations. The total of the two quantities is 14.

  x + y = 14

The sum of costs is $72. Totts are $8 each, so x of them will cost 8x. Elentines are $3 each, so y of them will cost 3y.

  8x +3y = 72

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Select 2 points PLEASE ANSWER THANKS YOU SO MUCH
Xelga [282]

Answer:

1) The graph is as shown at the attached figure.

2) The line passes with (1,-3) and (2,-2)

Step-by-step explanation:

graph the line that passes with (3,-1) and has a y-intercept of -4

y-intercept is the value of y when x = 0

So, the line passes with (0 , -4)

The general form of the line  y = mx + c

Where m is the slope and c is y-intercept

given y-intercept = -4 ⇒ ∴ c = -4

using the other point to find m

So, when x = 3 , y = -1

So,  -1 = 3m - 4

Solve for m

3m = -1 + 4 = 3

m= 3/3 = 1

So, the equation of the line ⇒ <u>y = x - 4</u>

See the attached figure which represents the graph of the line

As shown at the graph the line passes through the points <u>(1,-3) and (2,-2)</u>

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3 years ago
So I'm still trying to figure out but tell me. What are two demicals rounded to 1.5
Andrej [43]
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7 0
3 years ago
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gladu [14]
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5 0
3 years ago
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Zigmanuir [339]
Bottom left
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3 years ago
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Use the distributive property to show why the product (-6)(-3) is positive.
Bumek [7]
<h2>Answer:</h2><h2>The product of (-6) (-3) by distributive property is 18</h2>

Step-by-step explanation:

Distributive properties are used in arithmetic multiplication and division to reduce the time and to answer faster.

(-6) (-3) can be written as (-6) (-2 (+) -1)

By distributive property of multiplication

(-6) (-2 (+) -1) ={ (-6) (-2) + (-6) (-1) }

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since the product of ( - ) ( - ) = ( + )

multiplying two negative number gives a positive number.

Therefore the answer is 18.

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3 years ago
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