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3 years ago

Explaining Equivalent equations

Mathematics

1 answer:

andre [41]3 years ago

7 0

Answer:

Equivalent equations are equations that have exactly the same solution. To find equivalent equations, it is best to solve them individually to find the solutions. The ones with the same solution in the end are considered equivalent equations.

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C=25 S= 9 b = 4c- s2 b= ?

alekssr [168]

Answer:

4(25) - 9² = 100-81 = 19

Step-by-step explanation:

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3 years ago

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Find the missing side length, and enter your answer in the box below. If

Zigmanuir [339]

Answer:

2.5

Step-by-step explanation:

If you know two other sides of the right triangle, it's the easiest option; all you need to do is apply the Pythagorean theorem:

a² + b² = c²

if leg a is the missing side, then transform the equation to the form when a is on one side, and take a square root:

a = √(c² - b²)

if leg b is unknown, then

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3 years ago

National Textile installed a new textile machine in one of its factories at a cost of $250,000. The machine is depreciated linea

kirill115 [55]

Answer:

The required expression is $y=250,000-24,000 t$

Step-by-step explanation:

Consider the provided information.

National Textile installed a new textile machine in one of its factories at a cost of $250,000.

That means for 0 year the cost of the machine is $250,000.

This can be written as: (0, 250,000)

Over 10 years with a scrap value of $10,000

That means for 10 year the cost of the machine is $10,000.

This can be written as: (10, 10,000)

Now first find the rate of change:

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Rate of change=m= $\frac{Rise}{Run}=\frac{-240,000}{10}$

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Now use the point-slope form of an equation of a line with the point (0, 250,000), we can find the required expression.

$(y-250,000)=-24,000(t-0)$

$y-250,000=-24,000 t$

$y=250,000-24,000 t$

Hence, the required expression is $y=250,000-24,000 t$

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3 years ago

A box is filled with 11 blue cards, 2 green cards, and 7 brown cards. A card is chosen at random from the box. What is the proba

wel

11 blue
2 green
7 brown
total is 20 card
7 out of that 20 are brown
so x out of 100% are brown
7/20=x/100 - cross multiply
700=20x
x=700/20
x=70/2

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3 years ago

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ser-zykov [4K]

Answer:

X = 30

Step-by-step explanation:

Because every triangle adds to the total of 180

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Hope this helps

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3 years ago

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