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Mathematics

1 answer:

Nutka1998 [239]3 years ago

5 0

C is your answer in figures. one million and one hundred and ten thousand dollars

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What is the ratio of x to y?

abruzzese [7]

$\frac{3}{2} = \frac{2x}{2x+y}$

From any proportion, we get another proportion by inverting the extremes (or the means):

$\frac{2x+y}{2} = \frac{2x}{3}$ = k

so we have:

2x=3k
2x+y=2k therefore:
3k+y=2k
y= - k

x= $\frac{3}{2} k$

$\frac{x}{y}$ = - $\frac{3}{2}$

The corect answer is A. -3/2

or:

$\frac{3}{2} = \frac{2x}{2x+y}$

From any proportion, we get another proportion by inverting the extremes and the means:

$\frac{2x+y}{2x} = \frac{2}{3}$

We use a property of proportions:

$\frac{a}{b} = \frac{c}{d}$ 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

$\frac{a-b}{b} = \frac{c-d}{d}$ or

$\frac{a+b}{b} = \frac{c+d}{d}$ (you can check this also by "the product of the extremes equals the product of the means")

$\frac{2x+y}{2x} = \frac{2}{3}$

$\frac{(2x+y)-2x}{2x} = \frac{2-3}{3}$

$\frac{y}{2x} = \frac{-1}{3}$

3y = - 2x

$\frac{x}{y} = -\frac{3}{2}$

4 0

3 years ago

How do i figure out problems like these

tiny-mole [99]

Answer:

look it up

Step-by-step explanation:

look it up and there you go

4 0

3 years ago

Brenda created a scatterplot to compare the populations of cities in the United States to the amounts of water consumed in each

RideAnS [48]

Answer:b

Step-by-step explanation:

4 0

3 years ago

Which graph represents absolute value x+1 absolute value -3<4 or just how do you solve this

notsponge [240]

i need the graph to answer the graph

3 0

3 years ago

How do u do this problem

anastassius [24]

Because there are 4 people and all bought the same things you multiple 4(4+1+2)=4x7=28 So the total cost is $28

5 0

3 years ago