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aleksandrvk [35]

3 years ago

13

A pound of guinea-pig pellets is about 3 cups of food. Each guinea pig eats 1/4 cup of pellets a day. How many days will pellets

last? Also there is 5 pounds of pellets

1 answer:

notka56 [123]3 years ago

7 0

How many guinea pigs are there and how many day?

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Write each fraction as a decimal<br> 3 15/44

vitfil [10]

The answer would be 3.341

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gregori [183]

Answer:

Y=-5/3x-1

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If you are adding then it is:

7x=21

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Step-by-step explanation:

5x+3y=-3

3y=-5x-3

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Kruka [31]

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Ierofanga [76]

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2 years ago

What are the coordinates of the x-intercepts of the parabola y = x² - 8x + 15?

tamaranim1 [39]

Answer:

(3, 0) and (5, 0)

Step-by-step explanation:

we have

$y=x^{2}-8x+15$

we know that

The x-intercepts are the values of x when the value of y is equal to zero

so

For y=0

$x^{2}-8x+15=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-8x+15=0$

so

$a=1\\b=-8\\c=15$

substitute in the formula

$x=\frac{-(-8)\pm\sqrt{-8^{2}-4(1)(15)}} {2(1)}$

$x=\frac{8\pm\sqrt{4}} {2}$

$x=\frac{8\pm2} {2}$

$x=\frac{8+2} {2}=5$

$x=\frac{8-2} {2}=3$

so

x=3, x=5

therefore

The x-intercepts are (3,0) and (5,0)

4 0

3 years ago