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2 years ago

13

Hailey, Megan, and Bailey have saved $458 for a summer trip to the beach. Hailey has saved $167. Megan has saved at least $152,

but no greater than $164. Which inequality represents the dollar amount (x) that Bailey has saved?

1 answer:

Jet001 [13]2 years ago

4 0

Let H = Hailey, M = Megan, B = Bailey

H + M + B = 458
167 + M + B = 458
M + B = 291

152 ≤ M ≤ 164
If M = 152, B = 139
If M = 164, B = 127

Thus,
$127 ≤ B ≤ 139

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Help sorry nothing was attached last time

kicyunya [14]

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The dimensions of the rectangle.

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Area of a rectangle is:

$A=length\times width$

$A=(2x+7)\times x$

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$2x^2+7x=99$

$2x^2+7x-99=0$

Splitting the middle term, we get

$2x^2+18x-11x-99=0$

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Using zero product property, we get

$(x+9)=0$ and $(2x-11)=0$

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$x=-9$ and $x=5.5$

Width of the rectangle cannot be negative. So, $x=5.5$ yd.

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$Length=2(5.5)+7$

$Length=11+7$

$Length=18$

Therefore, the length of the rectangle is 18 yd and the width of the rectangle is 5.5 yd.

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3 years ago

Read 2 more answers

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Answer:

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$Z = \frac{X - \mu}{\sigma}$

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