If 28 ⋅ 521 = 14,588, what is 2.8 × 5.21?(1 point)
The product of 28 and 521 is 14,588.
To find the product of 2.8 and 5.21, we can multiply the decimal numbers just as we would with whole numbers and ignore the decimals until the end.
2.8 multiplied by 5.21 is:
2.8 × 5 = 14
2.8 × 0.21 = 0.588
Adding these two products together, we get:
14 + 0.588 = 14.588
Therefore, 2.8 × 5.21 is equal to 14.588.
Skip teaches children’s music lessons. He must purchase some materials to decorate the music room. He purchases 2 hanging spring swirls that cost $14.99 each, 5 hanging butterflies that cost $13.99 each, 10 flower cutouts that cost $11.99 each, and 4 butterfly window clings that cost $10.99 each. How much will his purchase cost before sales tax?(1 point)
To find the product of 2.8 multiplied by 5.21, follow these steps:
Step 1: Multiply the whole numbers: 2 x 5 = 10.
Step 2: Multiply the decimal parts: 0.8 x 0.21 = 0.168.
Step 3: Add the results from step 1 and step 2: 10 + 0.168 = 10.168.
Therefore, 2.8 multiplied by 5.21 is equal to 10.168.
To solve this problem, you need to multiply 2.8 by 5.21. Let's break down the steps:
Step 1: Multiply the numbers without the decimal point: 28 × 521 = 14,588.
Step 2: Count the total number of decimal places in both numbers. In this case, 2.8 has one decimal place, and 5.21 has two decimal places.
Step 3: Add the total number of decimal places: 1 + 2 = 3.
Step 4: Move the decimal point in the answer three places to the left. Since the answer (14,588) has no decimal point, you will need to imagine a decimal point after the last digit. Moving the decimal three places to the left will give you 14.588.
Therefore, 2.8 × 5.21 = 14.588.