3 years ago

Which ordered pair is a solution to this equation? 3x + 7y = 13

Mathematics

1 answer:

Ivan3 years ago

8 0

Answer:

(2,1)

Good Luck!!

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Maisie bought a house.

sergeinik [125]

Answer:

55.52+10=65.52%

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Ans:21.84%

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3 years ago

The steps to derive the quadratic formula are shown below:

Georgia [21]

Answer: $x+\frac{b}{2a}=\pm \frac{\sqrt{b^2 - 4ac}}{\sqrt{4a^2}}$

Step-by-step explanation:

We can rewrite the left hand side as a perfect square, more specifically

$\left(x+\frac{b}{2a} \right)^2$

So, taking the square root of both sides,

$x+\frac{b}{2a}=\pm \frac{\sqrt{b^2 - 4ac}}{\sqrt{4a^2}}$

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2 years ago

A video game is now being sold at 22% off for a price of $31.20. What was the original price of the video game?

BabaBlast [244]

Answer:

$38.06

Explanation:

Multiply $31.20 by 0.22 (22%)
Which equals 6.864
Add that to $31.20 and you get 38.064
Then you round it and get $38.06

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2 years ago

The ratio cost proce profit is 100:30:130 if the profit is $24 what is the selling price

rosijanka [135]

$hope \: this \: helps \: you$

6 0

2 years ago

Write and solve an inequality for situation.

Rom4ik [11]

Answer:

6 times

Step-by-step explanation:

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