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3 years ago

11

Solve the system of linear equations by elimination. x+y=3 x−y=1

1 answer:

DedPeter [7]3 years ago

6 0

This is easy because they y's will cancel out. I love this method it's the easiest one out of substitution, and graphing.

So the Y's will cancel out an you will get x=2. Then you plug the 2 in for x in the first equation. so it will 2+y-3. You subtract 2 from both sides to get y=1.

So the ordered pair is(2,1) :)

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What is the solution to this equation?

MrRissso [65]

Here, √x = 0.5
Squaring on both sides,
(√x)² = (0.5)²
x = 0.25

In short, Your Answer would be Option C

Hope this helps!

6 0

3 years ago

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Write and solve an equation to find the value

iren2701 [21]

Answer:

x = 11 ,

<APT = 6x + 1 ➡ 67°

<PTA = 9x - 24 ➡75°

<PAT = 5x - 17 ➡ 38°

Step-by-step explanation:

(5x - 17) + (9x - 24) + (6x + 1)=180°

20x - 40 = 180°

20x = 180° + 40°

20x = 220°

x = 11

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4 years ago

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You are downloading a song to your MP3 player. The ratio of pop songs to rock songs is 5:4. You download 40’pop songs. How many

finlep [7]

You download 4/5 as many rock songs as pop songs (a true shame), which is 40(4/5)= 32 rock songs.

4 0

3 years ago

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The area of the base of a rectangular prism is 36 cm2. The height of the prism is 3 5/6 cm. What is the volume of the prism?

Lilit [14]

Answer: The correct option is (C) 36 cm².

Step-by-step explanation: We are given to find the volume of a rectangular prism with base area 36 cm² and height $3\frac{5}{6}~\textup{cm}.$

We know that the volume of a rectangular prism with base area b sq. units and height h units is given by

$V=bh.$

Here,

base area, b = 36 cm²

and

height is

$h=3\dfrac{5}{6}=\dfrac{23}{6}~\textup{cm}.$

Therefore, the VOLUME of the given prism will be

$V=bh=36\times \dfrac{23}{6}=6\times 23=138~\textup{cm}^3.$

Thus, the volume of the given rectangular prism is 36 cm².

Option (D) is CORRECT.

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3 years ago

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Use the information to answer the question.

ArbitrLikvidat [17]

Answer:

10 hats

Step-by-step explanation:

<u>Original price </u>

$24.98

<u>Sale price</u>

$24.98*1.5 = $37.47 for two hats

<u>Total cost </u>

$187.35

<u>Hats sold:</u>

187.35/37.47 *2 = 10 hats

6 0

4 years ago