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3 years ago

10

Jonathan is filling his fish tank with water. The tank is a rectangular prism with a height of 14 inches, width of 12 inches, an

d length of 42 inches. What is the volume of the tank?

1 answer:

dem82 [27]3 years ago

5 0

Answer:

7056m3

Step-by-step explanation:

To find the volume of a rectangle you have to multiply length by the width by the height.

42×12×14=7056m3

m3= metres cubed

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Solve the following equation for h.<br> r+3Q/h=t

Arada [10]

Answer:

$\bold{h=\dfrac{3Q}{t-r}}$

Step-by-step explanation:

$\bold{r+\frac{3Q}h=t}\\-r\qquad\ -r\\\bold{\frac{3Q}h=t-r}\\\cdot h\qquad \cdot h\\ \bold{3Q=(t-r)h}\\^{\div(t-r)\quad\div(t-r)}\\\bold{\dfrac{3Q}{t-r}=h}$

Or, if you mean (r+3Q)/h=t:

$\bold{\frac{r+3Q}h=t}\\{}\ \ \cdot h\quad\ \cdot h\\\bold{r+3Q=ht}\\{}\ \ \div t\qquad \div t\\\bold{\dfrac{r+3Q}{t}=h}\\\\\bold{h=\dfrac{r+3Q}{t}}$

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3 years ago

The number of trees in a rainforest decreases each month by 0.5%. The forest currently has 2.5 billion trees. Which expression r

Blababa [14]

Answer:

$y=2.5*10^9(0.005^{12 0}) \\\\$

Step-by-step explanation:

The above question is in the form of an exponential decay. The equation for an exponential decay is given by:

$y=ab^x$

where y and x are variables, b < 1, a is the initial value of y (that is the value of y when x = 0).

Let y represent the number of trees left and x represent the number of months. Given that there is currently 2.5 billion trees, therefore a = 2.5 * 10⁹, b = 0.5% = 0.005. The equations becomes:

$y=2.5*10^9(0.005^x)\\\\After\ ten\ years(x=10*12\ months=120\ months):\\\\y=2.5*10^9(0.005^{12 0}) \\\\$

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3 years ago

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aleksklad [387]

Answer:

The answer is $\frac{23}{5}$ or $4.6$ .

Step-by-step explanation:

Solve the following equation:

$23 \times \frac{1}{5}$

-Multiply $23$ and $\frac{1}{5}$ to get

$23 \times \frac{1}{5} = \frac{23}{5} = 4.6$

So, now you have found the answer.

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