Which expression is equivalent to 3.7−6.4 ?
6.4 + 3.7
6.4−3.7
−6.4+3.7
−6.4−3.7
Answers
−6.4+3.7 is equivalent to 3.7−6.4
Further explanationDecimal numbers are numbers in which there are commas or decimal points.
The value of each number in decimal numbers is based on a comparison of the number 10
In a decimal system, the numbers have the following consecutive values (the place value of the digits in a number): hundred thousands, ten thousands, one thousands, hundreds, tens, ones, decimal points, tenths, hundredths, thousandths, ten thousandths , hundred thousandths
Between ones and tenth values separated by commas (decimal points)
Decimal numbers can also be expressed as proper or mixed fractions
The position of each digit in decimal numbers is important.
Because the decimal number is based on the number 10, As we move left, each position is 10 times bigger, and As we move right, each position is 10 times smaller
On the left of the decimal point is a whole number
"Equivalent to" mean having the same value.
In the decimal addition operation, we must pay attention to the place value
Addition between decimal numbers must be the same place value, for example between hundreds with hundreds, ten with ten and so on
Or if we use a vertical addition system, one under the other, pay attention to the decimal point, must be straight from top to bottom
In this addition operation we check the results of the addition of each decimal number operation
Question :3.7−6.4 = - 2.7
Answer choices :a. 6.4 + 3.7 = 10.1
b. 6.4 - 3.7 = 2.7
c. -6.4 + 3.7 = -2.7
d. - 6.4 - 3.7 = -10.1
Answer choices that have the same result is option C
Or simply this is the commutative form of addition operations
a + b = b + a (a = -6.4, b=3.7)
-6.4+3.7 = 3.7 +(-6.4)
-6.4+3.7 = 3.7 - 6.4
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the place value: 12,354,897
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Keywords: decimal, decimal point, addition, equivalent to
The equivalent expression of [tex]3.7 - 6.4[/tex] is [tex]\boxed{ - 6.4 + 3.7}[/tex]. Option (c) is correct.
Further explanation:
Given:
The options are as follows,
A. [tex]- 17 + 2x[/tex]
B. [tex]- 2x + 17[/tex]
C. [tex]- 2x -17[/tex]
D. [tex]17 + 2x[/tex]
Explanation:
The associative property is defined as a grouping of multiplication, addition, subtraction and division.
[tex]\boxed{a + \left( {b + c} \right) = \left( {a + b} \right) + c}[/tex]
In commutative property we interchange the numbers or digits.
This property can be used for multiplication and addition. It cannot be used in division and subtraction.
Commutative property for addition is [tex]\boxed{x + y = y + x}[/tex]
The expression is [tex]3.7 - 6.4.[/tex]
[tex]A = 3.7 - 6.4[/tex]
By commutative property of addition the expression can also be expressed as follows,
[tex]\begin{aligned}A&= 3.7 - 6.4\\&= - 6.4 + 3.7\\\end{aligned}[/tex]
The equivalent expression of [tex]3.7 - 6.4[/tex] is [tex]\boxed{ - 6.4 + 3.7}[/tex]. Option (c) is correct.
Learn more
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Answer details:
Grade: High school
Subject: Mathematics
Chapter: Number system
Keywords: expression, equivalent, division, equation, multiplication, exponents, parenthesis.
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The coordinates of the mid - point are - M(2, 2.5).
We have two coordinate points - A(2, 1) and B(2, 4)
We have to find the midpoint of this line AB.
What is Mid - Point Theorem?It states that a line with endpoint coordinates as - [x(1), y(1)] and [x(2), y(2)] has its mid - point at the coordinates -
x(m) = [tex]$\frac{x(1)+x(2)}{2}[/tex]
y(m) = [tex]$\frac{y(1) + y(2)}{2}[/tex]
According to question, we have -
First coordinate Point - A(2, 1)
Second coordinate Point - B(2, 4)
Using the Mid - Point formula, we get -
x(m) = [tex]$\frac{x(1)+x(2)}{2} = \frac{2+2}{2} =2[/tex]
y(m) = [tex]$\frac{1+ 4}{2}=2.5[/tex]
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Answer:
x is 2
Step-by-step explanation:
putting in x
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0=0 √
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Answers
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The Fahrenheit and Celsius temperature scales don't have absolute lowest temperatures like the Kelvin scale. So, temperatures like -10°F or -20°F (for example) are possible and would be colder than -7.2°F.
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(1 point)
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Answers
Final answer:
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2. For determining Sam's age, given that Sam is 3 years younger than Marco, who is 15 years old, we represent Sam's age with x. The equation to calculate Sam's age would be x = 15 - 3.
3. The equation presented as 60x210 seems to be a mistake. To find out how many hours, x, it will take to travel 210 miles at an average speed of 60 miles per hour, the correct equation is 210 = 60x.
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Answers
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like 0.abababababab=ab/99
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remember that x is 0.21212121? we can subtract that now from 21.21212121, as well as x from 100.
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Answers
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Answers
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Answers
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