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seropon [69]
3 years ago
14

Make an estimate. 4.9 x 3.1 Estimate:

Mathematics
2 answers:
Reil [10]3 years ago
6 0

Answer:

15

Step-by-step explanation:

5x3 =15

Reptile [31]3 years ago
5 0

Answer:

15

Step-by-step explanation:

We can round the two numbers so then we can multiply by the rounded numbers to get a close answer.

4.9 rounded to the nearest whole number is 5.

3.1 rounded to the nearest whole number is 3.

Now, we can multiply by the two numbers we got here.

5 × 3 = 15, so the answer to the question is 15.

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Find a three digit number. The tens digit is 3 time the hundreds digit. The sum of the digits is 15. If you reverse the digits,
tresset_1 [31]

Answer:

number = 267

Step-by-step explanation:

i am a 3 digit number divisible by 3.

100a + 10b + c

my tens digit is 3 times as great as my hundreds digit

b = 3a, from this we know a = 1, 2, 3, then b = 3, 6, 9

and the sum of my digits is 15.

a + b + c = 15

if you reverse my digits i am divisible by 6 and 3

100c + 10b + a

this is a logic problem, an equation won't help us here

From the given information b = 3a, and the sum of the 3 digits = 15, we have:

1 3 ___; three single digits can't add up to 15

2 6 _7_; this has to be the number

3 9 _3_; reverse number is not different

Check for division by 3 and 6

267/3 = 89

762/6 = 127

267 is the number

3 0
3 years ago
Find the radius r of the circle. Round your answer to the nearest tenth.
asambeis [7]

Answer:

1.1 yd

Step-by-step explanation:

120 × π/180 = 2π/3

2.3 = r × 2π/3

=> r = 2.3 ÷ 2π/3

=> r ≈ 1.1

3 0
3 years ago
The rectangle shown has a perimeter of 7272 cm and the given area. its length is 66 more than four timesfour times its width. wr
Vadim26 [7]
<span>Width = 6 Length = 30 We know the perimeter of a rectangle is simply twice the sum of it's length and width. So we have the expression: 72 = 2*(L + W) And since we also know for this rectangle that it's length is 6 more than 4 times it's width, we have this equation as well: L = 6 + 4*W So let's determine what the dimensions are. Since we have a nice equation that expresses length in terms of width, let's substitute that equation into the equation we have for the perimeter and solve. So: 72 = 2*(L + W) 72 = 2*(6 + 4*W + W) 72 = 2*(6 + 5*W) 72 = 12 + 10*W 60 = 10*W 6 = W So we now know that the width is 6. And since we have an expression telling us the length when given the width, we can easily determine the length. So: L = 6 + 4*W L = 6 + 4*6 L = 6 + 24 L = 30 And now we know the length as well.</span>
5 0
3 years ago
Số lượng lao dộng bình quân trong năm : 500 người , số ngày lễ , chủ nhật của người lao động trong doanh nghiệp được thực hiện t
Softa [21]

Answer:

I can't understand your language!?

7 0
3 years ago
The expression 8x + 2y
Digiron [165]
You can do 2(4x + 1y)
5 0
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