18. 1/2 of 18 is 9. 1/3 is 6. 6+6+9 = 21
Hello betzy166817!
The correct answer is: 250 miles per inch.
You can multiply the number of inches on the map by 250 to find the number of miles.
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Choose all answers that are correct.
A. 2y = 6 + x
B. x + 2y = 6
C. y = -1/2x + 3
D. (y - 2) = -1/2( x - 2 )
The equation to show the sum of two number is 160: x + y = 160.
An equation is a mathematical statement that shows that two expressions are equal.
To find two numbers that add up to 160, we can Set up an equation with two unknowns, x and y, representing the two numbers:
x + y = 160
Since there are infinitely many possible combinations of two numbers that add up to 160.
Some combinations are:
1. x = 80, y = 80
80 + 80 = 160
2. x = 50, y = 110
50 + 110 = 160
3. x = 30, y = 130
30 + 130 = 160
4. x = -20, y = 180
-20 + 180 = 160
5. x = 0, y = 160
0 + 160 = 160
These are just a few examples, and there are many other combinations of numbers that satisfy the equation x + y = 160.
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The equation is solved and the two numbers are x = 7 and y = 12
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let's call the first number "x" and the second number "y"
x = y - 5 (the first number is 5 less than the second number)
2y = 4x - 4 (twice the second number is 4 less than 4 times the first)
We can use substitution to solve for one of the variables.
Substituting the first equation into the second equation, we get:
2y = 4 (y - 5) - 4
Simplifying this equation , we get
2y = 4y - 24
2y - 4y = -24
-2y = -24
y = 12
Now that we know that the second number is 12, we can use the first equation to find the first number:
x = y - 5
x = 12 - 5
x = 7
Hence , the two numbers are 7 and 12
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Answer:
9 and 14
Step-by-step explanation:
One number is 5 less than a second number.
a = b - 5
:
Twice the second number is 8 less than 4 times the first.
2b = 4a - 8
replace a with (b-5)
2b = 4(b-5) - 8
2b = 4b - 20 - 8
2b - 4b = -28
-2b = -28
b = 14
then
a = 9
Answer:
-3 -4
Step-by-step explanation:
Bc it's why not ...... ummmmmmm