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2 years ago

I need help with number 7 please, thanks.

Mathematics

1 answer:

kykrilka [37]2 years ago

8 0

B, that’s easy... Just add them up.

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The number of pounds of dog food that a pet store has is represented by the equation y = negative 15 x + 430, where x represents

sertanlavr [38]

Answer: B) 115 pounds

Step-by-step explanation:

Because x is the number of days passed, after 21 days, x = 21.

$y = -15(21)+430\\\\Multiply\\\\y = -315+430\\\\y=115$

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2 years ago

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Chloe has $15 to spend on pencils. Each box of pencils costs $2. How many

Scorpion4ik [409]

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3 years ago

Can somebody find the solution to this question

AleksAgata [21]

<h3>Answer: Solution is x = -2</h3>

You have two equations with y1 = f(x) and y2 = g(x).

We're looking for the values of x such that f(x) = g(x). This is the same as trying to solve y1 = y2.

The first row of the table shows y1 and y2 having the same value 5. So we just record the x value that goes with these y values.

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2 years ago

Is this equation linear: 2x+5xy-3=0

Lina20 [59]

What is linear equation?

An equation between two variables that gives a straight line when plotted on a graph.

2x + 5xy - 3 = 0

x (2 + 5y) -3 = 0

x ( 2 + 5y ) = 3

2 + 5y = 3 / x

5y = (3/x) - 2

y = ( (3/x) - 2) / 5

According to the graph i don't think it's a linear equation.

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2 years ago

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