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atroni [7]
3 years ago
9

When a puppy was brought home it weighed 22 ounces.After two years, the puppy had grown into a dog weighing 310 ounces.How many

ounces did the puppy gain
Mathematics
1 answer:
Kruka [31]3 years ago
7 0

Answer:

288 oz

Step-by-step explanation:

310(final weight)-22(original weight)=288(weight gained)

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3 years ago
Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. Th
zvonat [6]

The labor fee is $13.55 and each quart of oil is $2.25

Step-by-step explanation:

Let,

x be the amount of each quart of oil

y be the amount of labor fee

According to given statement;

5x+y=24.80        Eqn 1

7x+y=29.30        Eqn 2

Subtracting Eqn 1 from Eqn 2

(7x+y)-(5x+y)=29.30-24.80\\7x+y-5x-y=4.50\\2x=4.50

Dividing both sides by 2

\frac{2x}{2}=\frac{4.50}{2}\\x=2.25

Putting x=2.25 in Eqn 1

5(2.25)+y=24.80\\11.25+y=24.80\\y=24.80-11.25\\y=13.55

The labor fee is $13.55 and each quart of oil is $2.25

Keywords: linear equation, subtraction

Learn more about subtraction at:

  • brainly.com/question/116715
  • brainly.com/question/11680012

#LearnwithBrainly

6 0
3 years ago
Plz i need help :ppppppp
miv72 [106K]

Answer: D

Step-by-step explanation:

Just do 7 x 88 LOL

8 0
3 years ago
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