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sammy [17]
1 year ago
13

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

Mathematics
1 answer:
vodomira [7]1 year ago
5 0

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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The answer you're looking for will be,
ANSWER:    3x(x + 2)(x - 2)

You're welcome.

STEPS:
#1.
Factor out common term 3x.
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3 years ago
Explain why any of the four operations (+x +) placed between the two terms 5 and-3/(radical sign) 8 will result in an irrational
kompoz [17]

To answer this question we will have to understand the nature of \sqrt{8}.

\sqrt{8} can be rewritten as: \sqrt{2\times 2\times 2} =2\sqrt{2}. Now, \sqrt{2} is an irrational number and thus any of the four operations of addition, multiplication, subtraction or division placed anywhere between any of these terms will always result in an irrational number.

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8 0
2 years ago
From 82 books to 138 books<br><br> Find the percent increase. Round to the nearest percent.
FrozenT [24]

Answer:

68%

Step-by-step explanation:

Calculate percentage change

from V1 = 82 to V2 = 138

(V2−V1)|V1|×100

=(138−82)|82|×100

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=0.682927×100

=68.2927%change

=68.2927%increase

=68%

3 0
2 years ago
Evaluate f(-3) for f(x) = 2^x<br> a. 1/8<br> b. -8<br> c. 8<br> d. -6
pickupchik [31]

Answer:

A

Step-by-step explanation:

f(-3) = 2^-3

to get rid of a negative in an exponent, move the whole thing to the denominator.

1/(2^3)

2^3 = 2×2×2

1/(2×2×2)

1/8

6 0
2 years ago
The circumference of a circle is C centimeters. The diameter of the circle is 19 centimeters. Which expression best represents t
sp2606 [1]

Answer:

Step-by-step explanation:

C = 19π

π = C/19

5 0
3 years ago
Read 2 more answers
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