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3 years ago

2X+2Y=48 3X+Y=40 What is X and Y

Mathematics

1 answer:

marshall27 [118]3 years ago

4 0

Answer:

x=8

y=16

Step-by-step explanation:

2x+2y=48

3x+y=40

Ther is many ways to solve this, one of them is clearance:

WE CLEAR AN UNLOCKED (X) AND REPLACE IT IN THE OTHER

x= (40-y)/3

2[(40-y)/3] +2y=48

(80-2y)/3 +2y=48

(80-2y+6y)/3=48

80+4y=48(3)

4y=144

y= 144/4

y=16

x=(40-y)/3

x=(40-16)/3

x=24/3

x=8

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Step-by-step explanation:

The value of a, the coefficient of x, is the slope.

If the slope is positive, the line is increasing from left to right.

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3 years ago

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3 years ago

How do you determine whether you are finding a percent of increase or a percent of decrease between two values? Explain.

Slav-nsk [51]

Answer:

Increase:

It will have increase when y>x

so, percentage of increase is

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Decrease:

It will have decrease when x>y

so, percentage of decrease is

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Step-by-step explanation:

Let's assume initial value as x

assume final value as y

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It will have increase when y>x

so, percentage of increase is

$=\frac{y-x}{x}\times 100$

For example:

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So, x=40

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so, y=50

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Decrease:

It will have decrease when x>y

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4 years ago

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3 years ago

in larg cities, people often take taxi to get from one place to another. what is the cost per mile of taxi ride how much is 47-m

leonid [27]

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<h3>What is the multiplication and division rule?</h3>

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Given,

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The complete question is:

In large cities people out and take taxis to get from one place to another the cost is $25.20 every 36 miles how much is a 47 mile taxi ride

To Learn more About factors, refer to:

brainly.com/question/25829061

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