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SVEN [57.7K]
3 years ago
11

A rectangular gasoline tank can hold 45.0 kg of gasoline when full. what is the depth of the tank if it is 0.450 m wide by 0.900

m long?
Mathematics
1 answer:
garri49 [273]3 years ago
7 0
The answer is 0.154 m

Step 1. Calculate the volume of gasoline tank (V) using the known mass (m) and density of gasoline (D).
D = m/V
⇒   V = m/D
D = 719.7 kg/m³
m = 45.0 kg
V = 45.0 kg/719.7 kg/m³ = 0.0625 m³

Step 2. Calculate the depth of the tank (d) using the known volume (V) of gasoline and width (w) and length (l) of the tank:
V = d * w * l
0.0625 = d * 0.900 * 0.450
0.0625 = d * 0.405
d = 0.0625  / 0.405
d = 0.154 m
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3 years ago
How to do equations with a variable on both sides x+3= -x - 5
ss7ja [257]
Explanation: 
When we have variables on both sides we look for the coefficient that is lower than the two and reverse the sign. 

Example: 

1x+ 4 = 2x+3 

We reverse 1x sign because it is lower so we will be subtracting

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We would then solve for x.

<span> 

Let's begin to solve! </span>
Step 1:

You would look for the coefficient or variable that is less and reverse the sign. 

In this question the lower number is -x and so we would reverse the sign to add. 

x+x= 2

Step 2: 
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2x+3 = -5

Step 3: 
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Step 4:
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Divide both sides by two fo find x 

Our answer:

\boxed{x = -4}

-


Summary:

We first looked for the lower coefficient (in this case variable). We then flipped the sign and solved for x. 




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Answer:

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Step-by-step explanation:

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