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3 years ago

It took 4 balloons to make the duck float. The duck

Mathematics

1 answer:

DaniilM [7]3 years ago

6 0

Answer: 14 grams

Step-by-step explanation:

It took 4 balloons to make a duck that weighs 56 grams to float. With one balloon, the number of grams that will float will be 56 grams divided by 4. This will be:

= 56 grams ÷ 4

= 14 grams

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What is the sum of 7 of the interior angles of a regular decagon?

Setler [38]

Answer:1440 degrees

Step-by-step explanation:

The interior angles of a decagon is 1440 degrees. All sides are the same length (congruent) and all interior angles are the same size.

5 0

2 years ago

I kinda need help nah I definitely need help

xxMikexx [17]

Answer:

<BCD = 128, <ECD = 52

Step-by-step explanation:

(3x + 5) + (x + 11) = 180

4x + 16 = 180

4x = 164

x = 41

<BCD is complimentary to <ACE which is (3x + 5). (3 * 41 + 5) = 128

<ECD is complimentary to <ACB which is (x + 11). (41 + 11) = 52.

4 0

3 years ago

Imagine a situation where a person is using a garden hose to fill the child’s pool. Think of two quantities that are related in

Lunna [17]

Volume of the child's pool.

Time taken by hose pipe to fill the pool

Step-by-step explanation:

To form a function in the given situation, the two quantities related can be time and the amount to be filled , i.e the time taken by a hose pipe to fill the given volume of the child's pool. Time in the formed function can be represented to be directly proportional to the volume and the speed of the water through hose pipe can tell how long it it takes, i.e how much time will it take to fill the given volume of pool.

4 0

3 years ago

Determine the exact value of sin 240

iren2701 [21]

simplify : the exact value of sin 240

Explanation: sin(240)=sin(60+180)=-sin60

$\begin{gathered} -sin60=-\frac{\sqrt{3}}{2} \\ =-0.87 \end{gathered}$

Final answer: the required vaalue of the sin 240 is -0.87

7 0

8 months ago

The quantity y varies directly with the square of x and inversely with z. When x is 9 and z is 27, y is 6. What is the constant

ira [324]

$\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \stackrel{\textit{\underline{y} varies directly with the square of \underline{x} and inversely with \underline{z}}}{y=\cfrac{kx^2}{z}}
\\\\\\
\textit{we also know that }
\begin{cases}
x=9\\
z=27\\
y=6
\end{cases}\implies 6=\cfrac{k9^2}{27}
\\\\\\
\cfrac{27\cdot 6}{9^2}=k\implies 2=k$

4 0

2 years ago