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timofeeve [1]
2 years ago
10

What are the values of x and y if you answer is not a whole number write it as a decimal and round if neccasasry

Mathematics
1 answer:
den301095 [7]2 years ago
5 0

a) 3x + 5y =  26  

b) 2x + 2y = 12

First, we need to find a way to equate either the x terms or the y terms in each equation. a)  6x + 10y = 52

                          b) 6x + 6y = 36

Then take equation b) from the equation a) to eliminate the x component.

a) 6x + 10y = 52

- b) 6x + 6y = 36

   0x    + 4y = 16

            y = 4 ?

Then substitute the value of y into either equation to find the value of x.

b) 2x + 2y = 12

   2x + (2x4) =12

   2x + 8 = 12

   2x = 4

   x = 2

I hope this new information i read helps you maybe understand it and as an example!

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Answer:

{ \tt{ \frac{7x}{3} + 2 =  - 15 }} \\  \\ { \tt{ \frac{7x + 6}{3} =  - 15 }} \\  \\ { \tt{7x + 6 =  - 15 \times 3}} \\  \\ { \tt{7x + 6 =  - 45}} \\  \\ { \tt{7x =  - 45 - 6}} \\  \\ { \tt{7x =  - 51}} \\  \\ { \boxed{ \tt{x =  - 7.3}}}

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Someone please help me.
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Y=150
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You!! I rechecked the answer and still got the same I’m sure it’s correct
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Four apples and one banana cost £1.40 Seven apples and one banana cost £2.00 Work out the cost of an apple and the cost of a ban
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Apple: £20
Banana: £60

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Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Select two options. x < 5 –6x – 5 < 10 – x –
svlad2 [7]

The correct representation of the inequality is -6x + 15 < 10 - 5x and an open circle is at 5 and a bold line starts at 5 and is pointing to the right.

<h3>What is inequality?</h3>

In mathematical concept, an inequality is a representation of an order linking two numbers or algebraic expressions together. These orders are called inequality signs such as greater than (>), less than (<), greater than or equal to(≥), or less than or equal to(≤). Either questions or theorems can be used to express inequality problems, and both can be solved using methods similar to those used to solve equations.

From the given information, we are given the inequality:

= -3(2x - 5) < 5(2 -x)

Open brackets, we get:

= -6x + 15 < 10 - 5x

Subtract 15 from both sides, we have:

= -6x + 15 - 15 < 10 - 5x - 15

= -6x < -5x - 5

Add 5 to both sides

= -6x + 5 < -5x - 5 + 5

= -6x + 5 < -5x

= -x < - 5

= x < 5

Learn more about solving inequalities here:

brainly.com/question/11613554

#SPJ1

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