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3 years ago

Does anyone know the answer to this question or know how to solve this type of problem?

Mathematics

1 answer:

RoseWind [281]3 years ago

6 0

Answer:

2x + 8 + x -2 is equal to 180

3x + 6 is equal to 180

3x is equal to 174

x is equal to 174 / 3

x= 58

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The rule for the number of fish in a home aquarium is 1 gallon of water for each inch of fish length. Marta's aquarium holds 39

Karo-lina-s [1.5K]

Answer: Fish A: 9 inches ; Fish B: 6 inches

Step-by-step explanation:

This can be turned into a systems of equation, where x equals the length of fish A and y equals the length of fish B:

3x + 2y = 39 → -3x - 2y = -39

3x + 4y = 51 → 3x +4y = 51

Combine: 0 + 2y = 12 → y = 6 inches.

Plug back in: 3x + 2(6) = 39 → 3x = 27 → x = 9 inches.

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2 years ago

Please Help me with these 2 questions!!

qaws [65]

Answer:

3) Parabola

4) $y = 5x^2 + 7$ and $y = \frac{10}{x} +20$

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2 years ago

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Taylor multiplied 8.25 * 10^4 and 0.4 * 10^4 and got 8.65 * 10^4. Explain Taylor's mistake. SOME ONE PLEASE HELP ME GET THIS ANS

7nadin3 [17]

Answer: I believe the answer is 3.3 x 10^8

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2 years ago

Ryan must purchase new pillows and blankets for a donation drive to help people in need. Each new pillow costs $8 and each new b

alukav5142 [94]

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3 years ago

Some students are working together to draw a picture of a playground.

vodomira [7]

From the information provided by the statement, you know that

*Ann draws 2/16 of the playground

*Susan draws 6/16 of the playground because she draws 3 times as much as Ann so

$3\cdot\frac{2}{16}=\frac{3}{1}\cdot\frac{2}{16}=\frac{6}{16}$

*Louise draws 3/16 because she draws half as much as Susan, so

$\frac{1}{2}\cdot\frac{6}{16}=\frac{6}{32}=\frac{2\cdot3}{2\cdot16}=\frac{3}{16}$

*Sam draws 2/16 because she draws 1 less section than Louise

$\frac{3}{16}-\frac{1}{16}=\frac{2}{16}$

Now, let x be the fraction of the playground that still needs to be drawn. Then, you have

$\begin{gathered} \frac{2}{16}+\frac{6}{16}+\frac{3}{16}+\frac{2}{16}+x=\frac{16}{16} \\ \text{ Add similar terms} \\ \frac{13}{16}+x=\frac{16}{16} \\ \text{ Subtract }\frac{13}{16}\text{from both sides of the equation} \\ \frac{13}{16}-\frac{13}{16}+x=\frac{16}{16}-\frac{13}{16} \\ x=\frac{3}{16} \end{gathered}$

Therefore, 3/16 of the playground still needs to be drawn.

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1 year ago

Does anyone know the answer to this question or know how to solve this type of problem? ​

Does anyone know the answer to this question or know how to solve this type of problem?