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3 years ago

Match the graph with the correct equation.

Mathematics

2 answers:

juin [17]3 years ago

7 0

The first step is to change the equations into y format. y= mx + b.
The y- intercept of this graph is at the point (0,2). Since the line is going down, the slope is negative. Therefore it would be: y+2 = -(x-4)
If changed it would be y= -x + 2.

lidiya [134]3 years ago

7 0

Answer:

y=25(0.85) x/5

Step-by-step explanation:

your welcome, hope it helps

xoxo: GLENDY

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What is 15x+8y less than or equal to 64

navik [9.2K]

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3 years ago

Can anyone please help me with this? i need a step by step explanation please! very appreciated:)

EastWind [94]

Answer:

Step-by-step explanation:

x and y are variables. That means they represent numbers that are unknown. When we solve for x or y, we are trying to find what number the variable represents.

Y is a number that equals both 5x-9 and 3x+7. If it is a number, it can only have one value, so we can say that 5x-9 and 3x+7 have the same value.

In other words, 5x-9 = 3x+7.

Another way of thinking about this step is substitution. y=3x+7, so in the equation y=5x-9, we can replace the y with 3x+7. It will give 3x+7 = 5x-9.

In either case, we have this new equation

5x-9 = 3x+7.

From here it's just simple algebra- subtract 3x from each side

2x -9 = 7

and add 9 to each side

2x = 16

and divide each side by 2.

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All these steps work because if two things equal each other, when you do the same thing to both of them (such as add 9), the new values will still equal each other.

Now that we know that x = 8, we can take one of the original equations

y=5x-9

and put 8 in for x.

y=5*(8) -9.

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2 years ago

Read 2 more answers

Find the simple interest of $2300 invested at 7.5%for 10years

san4es73 [151]

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Plug 7.5% (decimal form is 0.075) into r.

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3 years ago

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nika2105 [10]

Answer:

Step-by-step explanation:

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3 years ago

Please help with this acellus question!

Anna11 [10]

Answer:

The value of x is 5

Step-by-step explanation:

In the given triangle

∵ A segment joining two points lie on the two side

∵ This segment is parallel to the third side

∴ This segment divides the two sides into parts that have the same ratio

→ That means x over 2x - 3 equal to 10 over 14

∵ $\frac{x}{2x-3}$ = $\frac{10}{14}$

→ By using cross multiplication

∴ 10 × (2x - 3) = x × 14

∴ 10(2x) - 10(3) = 14x

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→ Add 30 to both sides

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→ Divide both sides by 6

∴ x = 5

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3 years ago