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4 years ago

8

chris wants to order dvds over the internet each dvd costs $15.99 and shipping the entire order costs $9.99 if he can spend no m

ore then $100 how many dvds could he buy?

1 answer:

Aleks [24]4 years ago

5 0

5 would cost $80 and shiping is $10 so he can only buy 5

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When point e (-7, 2) is rotated 90º counterclockwise about the origin, it becomes point e' (-2, -7)?

Mamont248 [21]

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The sum of two numbers is 39. The second number is 3 more than three times the first number. Let x represent the first number an

GenaCL600 [577]

Answer:

$The\: value \:of\: the\: first\: number\:is\:9$

Step-by-step explanation:

$We\:have\:a\:system\:of\:equation:\\\left \{ {{x+y=39} \atop {3x+3=y}} \right. \\\Leftrightarrow \left \{ {{39-x=y} \atop {3x+3=39-x}} \right. \\\Leftrightarrow \left \{ {{39-x=y} \atop {4x=36}} \right. \\\Leftrightarrow \left \{ {{y=39-9} \atop {x=9}} \right. \\\Leftrightarrow \left \{ {{y=30} \atop {x=9}} \right. \\\Rightarrow x=9$

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3 years ago

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Zarrin [17]

Answer:

Step-by-step explanation:

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3 years ago

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3 years ago

Ginger make pies and sells them for $14 each. What equation if y represents the money and x represents the number of pies sold

BlackZzzverrR [31]

Answer:

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The equation is as follows:

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y = 14x

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