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2 years ago

8

Mrs. Collins is going to plant her garden. She purchases 4 tomato plants for $2.59 each, a package of watermelon seeds for $1.87

, and a jalapeno plant for $3.88. How much will Mrs. Collins spend on seeds and plants for her new garden?

1 answer:

Tanya [424]2 years ago

6 0

Answer:

5.65

Step-by-step explanation:

SOMWRGING AROUND THAT

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Express each ratio as a fraction in simplest form: <br><br> 0.3 km to 500 m

deff fn [24]

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300m:500m
(/100)
3:5
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Step-by-step explanation:

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andrey2020 [161]

First observe that if $a+b>0$ ,

$(a + b)^2 = a^2 + 2ab + b^2 \\\\ \implies a + b = \sqrt{a^2 + 2ab + b^2} = \sqrt{a^2 + ab + b(a + b)} \\\\ \implies a + b = \sqrt{a^2 + ab + b \sqrt{a^2 + ab + b(a+b)}} \\\\ \implies a + b = \sqrt{a^2 + ab + b \sqrt{a^2 + ab + b \sqrt{a^2 + ab + b(a+b)}}} \\\\ \implies a + b = \sqrt{a^2 + ab + b \sqrt{a^2 + ab + b \sqrt{a^2 + ab + b \sqrt{\cdots}}}}$

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$a+b = x = \sqrt{x \sqrt{x \sqrt{x \sqrt{\cdots}}}}$

Now let $b=1$ , so $a^2+a=4x$ . Solving for $a$ ,

$a^2 + a - 4x = 0 \implies a = \dfrac{-1 + \sqrt{1+16x}}2$

which means

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(note that we assume $2x-1\ge0$ )

$4x^2 - 4x + 1 = 1 + 16x \\\\ 4x^2 - 20x = 0 \\\\ 4x (x - 5) = 0 \\\\ 4x = 0 \text{ or } x - 5 = 0 \\\\ \implies x = 0 \text{ or } \boxed{x = 5}$

(we omit $x=0$ since $2\cdot0-1=-1\ge0$ is not true)

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1 year ago

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Step-by-step explanation:

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2 years ago

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tia_tia [17]

Answer:

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Step-by-step explanation:

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(hope this helps, sry if its badly written)

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