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labwork [276]
3 years ago
7

If (x-2)(y-1)=3 and (x+2)(2y-5)=15,

Mathematics
1 answer:
daser333 [38]3 years ago
5 0

Answer:

Equation 1, Multiplied by 2: 2x + 4y = 10

Equation 1, Multiplied by 2: 2x + 4y - 10 = 10 - 10

Equation 1, Multiplied by 2: 2x + 4y - 10 = 0

Equation 1, Multiplied by 2: 2x - 2x + 4y - 10 = 0 - 2x

Equation 1, Multiplied by 2: 4y - 10 = - 2x

Equation 1, Multiplied by 2: - 10 + 4y = - 2x

Notice that Equation 1 = Equation 2

One Solution

Equation 1: x - y = -10

Equation 2: 2x + 3y = 15

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The graph will be a straight line passing through the origin (0,0).

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Solve this math problem 1/6 x 58
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29/3

Step-by-step explanation:

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Mrs.Bunn had 20 basketballs to inflate. She filled 12 of them. What percentage did she fill??
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4 + (x + y) = (4 + x) + y
Bezzdna [24]

The property in the expression 4 + (x + y) = (4 + x) + y is Commutative property.

<h3>What is the number?</h3>

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.

It is given that:

4 + (x + y) = (4 + x) + y

As we know,

Commutative property is the property in which we can arrange the terms withouth changing the sign.

For an example:

a + b = b + c

In the given expression

4 + (x + y) = (4 + x) + y

The Commutative property is applied to rearrange the terms.

Thus, the property in the expression 4 + (x + y) = (4 + x) + y is Commutative property.

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brainly.com/question/17429689

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3 0
2 years ago
The numbers 7, 11, 12, 13, 14, 18, 21, 23, 27, and 29 are written on separate cards, and the cards are placed on a table with th
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Answer:

3/10

Step-by-step explanation:

<em>Step 1 : Write the formula of calculating probability</em>

Probability = Number of favourable outcomes/Number of total outcomes

<em>Step 2 : Identify the favourable (requires) outcomes and the total outcomes</em>

  • Total outcomes are the total cards that are placed on the table = 10 cards
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       12, 14, 18 = 3 cards

<em>Step 3 : Substitute the values in the formula</em>

Probability = Number of favourable outcomes/Number of total outcomes

Probability = 3/10

Therefore, the probability of picking a card with and even number is 3/10.

!!

7 0
3 years ago
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