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morpeh [17]
3 years ago
11

What is 27% of 81 using the Decimals strategy?

Mathematics
2 answers:
NemiM [27]3 years ago
4 0

27%=(27/100)=0.27


0.27*81=21.87


Hope this helps!!

Misha Larkins [42]3 years ago
3 0

Answer:

1.3


Step-by-step explanation:


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What is 275.9 × 10−4 in standard form?
lisov135 [29]

Answer:

-2755

Step-by-step explanation:

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3 years ago
Find the sum of each set of numbers, as well as the size n of each set of numbers (n = number of numbers in the set). Use these
guapka [62]

We have to add numbers without a calculator.

1) 25, 35, 19, 31

We can group them by the last digit, so they are easy to add:

25 + 35 = 20 + 30 + 5 +5 = 50 + 10 = 60

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Then, 60 + 50 = 110

numbers in the set n = 4

Sum = 110

2) 101, 73, 49, 27, 24, 36

We can group them again by the last digit (adding 10, like the previous example).

We can substract the last digit from one number and add it to the other one. The result will be the same, but they will become easier to add.

101 + 49 = 100+50 = 150

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24 + 36 = 20 + 40 = 60

150 + 100 + 60 = 250 + 60 = 310

numbers in the set n = 6

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3) 25, 25, 25, 30, 30, 30, 32, 32, 32

In this case we have 3 times the same numbers, so we can add the three different numbers and then multiply the total by 3.

We can use the properties of the multiplication to simplify the product (we will use the distributive property)

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8 0
1 year ago
105-30-45-3028+10000000000000038492=?
Volgvan

Answer:

105-30-45-3028+10000000000000038492= 1.000000000000003e19

Step-by-step explanation:

I did the math

have a good day!!

8 0
3 years ago
Solve for W
umka2103 [35]

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13.8w = -15.18 -----> divide both sides by 13.8

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4 0
3 years ago
Read 2 more answers
What is the volume of the right rectangular prism with a length of 18 inches, a width of 4 inches, and a height of 10 inches? 32
egoroff_w [7]

Answer:

720in

Step-by-step explanation:

V=LWH

V=(18)(4)(10)

7 0
2 years ago
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