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VikaD [51]
3 years ago
15

Marcus wants to make a stone walkway in his garden. The rectangular walkway will be 3 feet wide and 21 feet long. Each 2-foot by

3-foot stone covers an area of 6 sq. Feet. How many stones will he need?
Mathematics
1 answer:
nexus9112 [7]3 years ago
3 0

Answer:

i believe the answer is 9

Step-by-step explanation:

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Which expression is equivalent to 1/2(2n+6 ​
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n+3

Step-by-step explanation:

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Please someone helpppp ):
skad [1K]

Answer:

  70 -20x = 60 -15x

Step-by-step explanation:

The amount of money left on Josh's card is ...

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<em>Additional comment</em>

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3 years ago
Does the given ordered pair, (-3,5/2) satisfies the given equation. 5x-2y=5 ?
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3 years ago
Which expression best estimates 6 3/4 divided by 1 1/2?
ANTONII [103]

Answer:

7/2

Step-by-step explanation:

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6 0
3 years ago
According to Boyle’s law, PV= K, what was the volume at the time of the first measurement given the following information? Round
Temka [501]
<h2>Hello!</h2>

The answer is:

The first measurement of volume is equal to 835.23 mL.

<h2>Why?</h2>

Boyle's Law equation can be used when the temperature is kept constant, and it establishes a relation between the pressure and volume, showing that when an ideal gas is kept constant, the pressure and volume are inversely proportional.

So, we Boyle's Law equation states that:

P_{1}V_{1}=P_{2}V_{2}

Where,

P_1=FirstPressure\\V_1=FirstVolume\\P_2=NewPressure\\V_2=NewVolume

Now, if we are looking for the first volume measurement, we need to rewrite the equation as follow:

P_{1}V_{1}=P_{2}V_{2}\\\\V_{1}=\frac{P_{2}V_{2}}{P_{1}}

So, substituting the given information and calculating, we have:

V_{1}=\frac{8.59atm*527mL}{5.42atm}

V_{1}=\frac{4526.93atm.mL}{5.42atm}=835.23mL

Hence, the first measurement of volume is equal 835.23 mL.

Have a nice day!

8 0
3 years ago
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