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3 years ago

15

kerry swims every 3 days and bikes every 5 days . if she swims and bikes today how many days will pass before she does both on t

he same day

1 answer:

n200080 [17]3 years ago

3 0

Answer:

15 days

Step-by-step explanation:

G.C.F of 15

1,3,5,15

the common factors other than one and itself are the days Kerry swims and bikes

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Help with number 50 please. Thanks.

Blizzard [7]

Answer:

$d = 7 + 3\sqrt{3}$ and

$d = 7 - 3\sqrt{3}$

Step-by-step explanation:

To solve the equation, $d^2 - 14d - 22 = 0$ , using the quadratic formula,

Recall: quadratic formula = $\frac{-b ± \sqrt{b^2 - 4ac}}{2a}$

Where,

a = 1

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Plug in your values into the formula and solve:

$\frac{-(-14) ± \sqrt{(-14)^2 - 4(1)(22)}}{2(1)}$

$\frac{14 ± \sqrt{196 - 88}}{2}$

$\frac{14 ± \sqrt{108}}{2}$

$d = \frac{14 + \sqrt{108}}{2}$

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And

$d = \frac{14 - \sqrt{108}}{2}$

$d = \frac{14 - 6\sqrt{3}}{2}$

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Step-by-step explanation:

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Step-by-step explanation:

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