From any proportion, we get another proportion by inverting the extremes (or the means):
= k
so we have:
2x=3k
2x+y=2k therefore:
3k+y=2k
y= - k
x=
= -
The corect answer is A. -3/2
or:
From any proportion, we get another proportion by inverting the extremes and the means:
We use a property of proportions:
where a, d are extremes and b,c are means and the product of the extremes equals the product of the means (a*d=b*c),
so we have
or
(you can check this also by "the product of the extremes equals the product of the means")
3y = - 2x
Answer:
1
Step-by-step explanation:
Follow PBEMDAS:
Parenthesis
Brackets
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
~
First, divide -64 with 8:
-64/8 = -8
Next, divide -8 with -8:
-8/-8 = 1
1 is your answer.
~
Answer: See explanation
Step-by-step explanation:
Let Amara money be represented by a
Since Candace has $15 more than Amar. Therefore, Candace money will be = a + 15
Their total money will be 85 and this can be represented in an equation as:
a + (a + 15) = 85.
a + a + 15 = 85
2a + 15 = 85
2a = 85 - 15
2a = 70
a = 35
Amar money = $35
Candace money = $35 + $15 = $50
The answer is 2x-4
Factor out 5 from the expression and then reduce the numbers with the greatest common factor 5
