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Dima020 [189]
2 years ago
9

What is the sum of 2 3/4 and −2 3/4 ?

Mathematics
1 answer:
makvit [3.9K]2 years ago
8 0

Answer:

2\frac{3}{4} + -2\frac{3}{4} = 0

Step-by-step explanation:

1st step convert into improper fraction:

===> 2\frac{3}{4} + -2\frac{3}{4}

===> \frac{16}{4} + -\frac{16}{4}

2nd step now adding the numbers:

( Plus sign and minus sign multiplies and hence the plus sign changes to minus)

===> \frac{16-16}{4}

Therefore the sum of 2\frac{3}{4} + -2\frac{3}{4} = 0

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a highway measures 58 and 1/2 miles long. There will be a speed limit sign posted every two one six miles. How many speed limit
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4 0
3 years ago
Can somebody good at math help me with these please I would really appreciate it
balandron [24]

Answer:

1) The discount is $4.05

The sale price is $18.45

2) The discount is $10

The sale price is $30

3) The discount is $2.6

The sale price is $23.4

Step-by-step explanation:

1) What is the discount and sale price for a haircut that originally cost $22.50 with an 18% discount.

Actual Price= $22.50

Discount = 18%

Finding discount:

18\%\:of\:22.50\\=\frac{18}{100}\times 22.50\\=4.05

So, the discount is $4.05

Finding Sale Price

The sale price can be found by: Sale\;Price=Actual\:Price-Discount

Putting values and finding sale price:

Sale\:Price=22.50-4.05\\Sale\:Price=18.45

The sale price is $18.45

2) What is the discount and sale price for a sweatshirt that originally priced $40.00 with an 25% discount.

Actual Price= $40.00

Discount = 25%

Finding discount:

25\%\:of\:40.00\\=\frac{25}{100}\times 40.00\\=10

So, the discount is $10

Finding Sale Price

The sale price can be found by: Sale\;Price=Actual\:Price-Discount

Putting values and finding sale price:

Sale\:Price=40.00-10\\Sale\:Price=30

The sale price is $30

2) What is the discount and sale price for a large pizza that originally cost $26.00 with an 10% discount.

Actual Price= $26.00

Discount = 10%

Finding discount:

10\%\:of\:26.00\\=\frac{10}{100}\times 26.00\\=2.6

So, the discount is $2.6

Finding Sale Price

The sale price can be found by: Sale\;Price=Actual\:Price-Discount

Putting values and finding sale price:

Sale\:Price=26.00-2.6\\Sale\:Price=23.4

The sale price is $23.4

7 0
3 years ago
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