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olya-2409 [2.1K]
2 years ago
7

Mrs. Garcia was required to write down the cost of the tour for the students and chaperones. For the chaperones, she wrote: 6 pe

ople($0) = $0. Explain why this expression is not an example of the identity property of multiplication.
Mathematics
2 answers:
Katarina [22]2 years ago
8 0

Answer:

The identity property of multiplication is also known as the multiplication property of 1.

This states that the result of multiplying any real number by 1 is the number itself.

Here, the teacher wrote 6 people($0) = $0

This will be 0 as any number multiplied by 0 is 0. And here there is not 1. So, this expression is not an example of the identity property of multiplication.

melisa1 [442]2 years ago
3 0

its not because u cant multiply 0x0 thats going to equal to 0

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Josefina works between 10 and 30 hours per week at a pizzeria. She earns $6.50 an hour, but can earn tips when she delivers pizz
mafiozo [28]


a, 6.50h=d

b. 25 hours

7 0
2 years ago
19. Bella is putting down patches of sod
Fofino [41]

Answer:

The dimensions of the two different rectangular regions are;

1st Arrangement:

W = 4 yards and L = 5 yards or W = 5 yards and L = 4 yards

2nd Arrangement:

W = 2 yards and L = 10 yards or W = 10 yards and L = 2 yards

The perimeter of the two different rectangular regions are;

1st Arrangement:

P₁ = 18 yards

2nd Arrangement:

P₂ = 24 yards

Step-by-step explanation:

Bella is putting down patches of sod to start a new lawn.

She has 20 square yards of sod.

We are asked to provide the dimensions of two different rectangular regions that she can cover with the sod.

Recall that a rectangle has an area given by

Area = W*L

Where W is the width of the rectangle and and L is the length of the rectangle.

Since Bella has 20 square yards of sod,

20 = W*L

There are more than two such possible rectangular arrangements.

Out of them, two different possible arrangements are;

1st Arrangement:

20 = (4)*(5) = (5)*(4)

Width is 4 yards and length is 5 yards or width is 5 yards and length is 4 yards

2nd Arrangement:

20 = (2)*(10) = (10)*(2)

Width is 2 yards and length is 10 yards or width is 10 yards and length is 2 yards

Therefore, the dimensions of two  different rectangular regions are;

1st Arrangement:

W = 4 yards and L = 5 yards or W = 5 yards and L = 4 yards

2nd Arrangement:

W = 2 yards and L = 10 yards or W = 10 yards and L = 2 yards

What is the perimeter of each region?

The perimeter of a rectangular shape is given by

P = 2(W + L)

Where W is the width of the rectangle and and L is the length of the rectangle.

The perimeter of the 1st arrangement is

P₁ = 2(4 + 5)

P₁ = 2(9)

P₁ = 18 yards

The perimeter of the 2nd arrangement is

P₂ = 2(2 + 10)

P₂ = 2(12)

P₂ = 24 yards

So the perimeter of the 1st arrangement is 18 yards and the perimeter of the 2nd arrangement is 24 yards.

Note:

Another possible arrangement is,

20 = (1)*(20) = (20)*(1)

Width is 1 yard and length is 20 yards or width is 20 yards and length is 1 yard.

3 0
2 years ago
Jonathons piggy bank contains 20 nickels 30 quarters and 50 one dollar coins. He picks 20 coins from the bank at random
fredd [130]

Answer:

All in all, Jonathan's piggy bank contains 100 coins. Among these coins, only 50 are one-dollar coins. Therefore, the theoretical probability of picking one-dollar coin from the piggy bank is equal to 50/100 or 1/2.  

Similarly, from the experiment, 20 coins were picked and among these there are 12 one-dollar coins. The answer to the second question is therefore 12/20 or 3/5.

Step-by-step explanation:

4 0
2 years ago
Consider the following expression -2m(m+n-4)+5(-2m+2n)+n(m+4n-5) which of the following is an equivalent expression
velikii [3]
The answer is:

-2m²+4n²-mn-2m+5n

aka letter c in algebra nation
3 0
2 years ago
What is the measure of AngleJHG? A protractor shows line J H G. An arc represents the angle between J H G. H G is horizontal to
Montano1993 [528]

Answer:  m\angle JHG=70\°

Step-by-step explanation:  

The missing image is attached.

It is important to remember that a protractor is a measuring instrument that is used to measure angles in degrees.

Then, in order to measure an angle in degrees using a protactor, you can follow these steps:

1. You must place the center point of the protractor on the vertex of the angle.

2. Then, you must line up the base line of the proctactor with one side of the angle.

3. Finally, you can read the angle in degrees.

  In this case, you can observe in the image attached that the protractor is placed on the vertex "H" of the angle JHG.

Therefore, based on the explanation shown before, you can identify that the meausre in degrees of the angle JHG is the following:

m\angle JHG=70\°

8 0
2 years ago
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