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hoa [83]
3 years ago
11

Which amount of 1 inch square pieces of chocolate would you

Mathematics
2 answers:
kherson [118]3 years ago
7 0

Step-by-step explanation:

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nexus9112 [7]3 years ago
5 0

a. Chocolate need to cover a rectangle with a length of 9 in. and a perimeter of 22 inches is 18 pieces of 1 inch square piece chocolates

b.Chocolate need to cover a rectangle with a length of 5 in. and a perimeter of 20 inches is 20 pieces of 1 inch square piece chocolates

Step-by-step explanation

a. To cover a rectangle with a length of 9 in. and a perimeter of 22 in.

perimeter = 2(length+breadth)

Breadth = 22 -9×2  = 22-18 = 4 ÷ 2 = 2 inches

Area of rectangle = 9 × 2 = 18 inches

18 pieces of  1 inch square piece  Chocolate is needed to cover the rectangle

b. To cover a rectangle with a length of 5 in. and a perimeter of     20 in.

perimeter = 2(length+breadth)

Breadth = 20 - 5 ×2  = 10 = 10 ÷ 2 = 5 inches

Area of rectangle = 5 × 5 = 20 inches

20 pieces of  1 inch square piece  Chocolate is needed to cover the rectangle

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Write a linear equation in slope intercept form to model the situation and internet company charges $4.95 per month plus $2.50 f
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Answer:

it cost $39.95 in a month when you use the internet for 14 hours

Step-by-step explanation:

internet company charges $4.95 per month plus $2.50 for each hour

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7 0
3 years ago
Miles incorrectly gave the product of 7 × 2.6 as 14.42. Use a place value chart or an area model to help Miles understand his mi
svetlana [45]
  • Place value chart: 7 x 2.6 = 18 ones plus 2 tenths = 18.2
  • Area model: 7 x 2.6 = 14 + 4.2 = 18.2
<h3>Further explanation</h3>

Miles incorrectly gave the product of 7 x 2.6 as 14.42.

Let us use a place value chart or an area model to help Miles understand his mistake.

See the attached picture for the place value chart and area model.

<u>Place Value Chart</u>

7 x 2.6 is the same as 7 multiplied by 2 ones and 6 tenths. In other words, we see clearly that 7 multiplied by 2 plus 7 multiplied by 0.6.

  • We prepare two columns of ones and tenths separated by dots.
  • In the ones column, place two dots on each row until it reaches 7 rows. This means 7 times 2 equal to 14 dots.
  • In the tenth column, place six dots on each row until it reaches 7 rows. This means 7 times 0.6.
  • In the tenth column, every time it reaches 10 dots, it becomes 1 ones which are added to the dots in the ones column.
  • There are 4 additional dots in the ones column as a result of each 10 dots in the tenth column. We add 14 dots with 4 dots and the result is 18 ones.
  • The remaining dots in the tenth column will be added with all the dots in the ones column. There are two dots left so that it becomes 2 tenths.

\boxed{ \ 7 \times 2.6 = 18 \ ones \ plus \ 2 \ tenths = \boxed{ \ 18.2 \ } \ }

<u>Area Model</u>

7 x 2.6 is the same as 7 multiplied by 2 ones and 6 tenths.

  • Let 2 ones and 6 tenths as the length and 7 as the width of a rectangle.
  • 7 x 2 ones = 14 ones or 14.
  • 7 x 6 tenths = 42 tenths or 4.2.
  • The area of the rectangle is 14 ones plus 42 tenths, or 14 plus 4.2.

\boxed{ \ 7 \times 2.6 = 14 + 4.2 = \boxed{ \ 18.2 \ } \ }

<h3>Learn more</h3>
  1. The example of a question about the four types of number form  770,070 brainly.com/question/4725342
  2. 2 thousands 7 tens divided by 10 brainly.com/question/1648434
  3. What is the difference in the value of 7 at 67,908 and 76,908 in the unit form? brainly.com/question/120717

Keywords: Miles, incorrectly, gave the product of, 7 x 2.6 as 14.42, a place value chart, an area model, understand his mistake, 18.2, ones, tenths, dots, column

3 0
3 years ago
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