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Tatiana [17]
3 years ago
10

Using Accuracy and Precision Avani is building a rectangular play area. The length of the play area is 7.5 meters. The width of

the play area is 5.3 meters. If she wants to cover the area in foam, how much foam does she need to buy?
Due to the accuracy of the tape measure Avani used, the amount of foam needed to cover the play area is_______(fill in the blank)
Mathematics
1 answer:
Oxana [17]3 years ago
5 0
The whole area is a rectangle one. In order to get the area of a rectangle, the formula is length multiplied by the width. The length of the area is 7.5 meters and the width is 5.3 meters. Covering the whole area with foam needs 39.75 square meters of it. 
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Twenty-one fish are swimming in an aquarium. Eleven are removed, leaving 10 fish. Which number is the additive inverse of the nu
agasfer [191]

The additive inverse: The usage of addition with a negative number.

The original equation is 21 - 11 = 10

To use the additive inverse, change it so that there is an addition sign.

21 + (-11) = 10

B) -11 is your answer

hope this helps

7 0
3 years ago
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If Pablo invest $4,200 for 3 years and earn $630 what is the simple interest rate
Mariana [72]
The interest rate would be 5%
6 0
3 years ago
a party of 7 comes into your restaurant and says they want to split the bill evenly 7 ways their total is $247.79 what does each
Finger [1]

Answer:

each costumer owe $35.40

Step-by-step explanation:

so, u get 247.79÷7 (cuz it is 7 people)

u get 35.40.

to check just get 35.40×7 and u will revice their total.

6 0
3 years ago
PLEASE HELPPP ASAPPPPPPP
Mila [183]
You basically have to find the slope, to find the average rate of change, because finding the slope and finding the average rate of change is basically the same thing.

Here's the formula : \frac{y(2) - y(1)}{x(2) - x(1)}

So here, all you'd have to do is simply pick two points, and insert them into this formula. Say you take the points (-2, -2) and (0,-3). You would start from the y-intercept of the second point, and insert them all into the formula.

\frac{-3 - (-2)}{0-(-2)} which would turn into \frac{-1}{2}. And so since you want a good, stable number, and not just a fraction, you would divide -1 and 2, and the average rate of change would be -0.50.

AVERAGE RATE OF CHANGE : -0.50
5 0
3 years ago
Roberto has a sample of an unknown liquid. The label in the bottle of the sample indicates that the liquid has a mass of 117 gra
Tomtit [17]

Answer:

It is Milk

Step-by-step explanation:

The liquid in the bottle has mass given in grams and the mass of that substance is 117 grams.

The volume of the substance is 15 cubic centimeters.

Now, using the formula of density we can estimate which substance could it be.

d=\frac{m}{v}, where 'd', is the density, 'm' is the mass, and 'v' is the volume of the substance.

Plugging the value of mass and volume we get:

d=\frac{117}{15} =7.8g/cm^3

So the density of the substance is 7.8 grams per cubic centimeter.

It cannot be water since the density of water is 1 grams per cubic centimeter.

It cannot be gasoline because its density is 0.77 grams per cubic centimeter.

It cannot be mercury because the density of mercury is 13.56 grams per cubic centimeter.

Since, the density in this case matches the density of thick milk and hence,therefore, the liquid in the bottle is milk.

7 0
3 years ago
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