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3 years ago

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Lindsay and Lorraine are trying to match the jump rope world record. Together, they need to jump 48 times in a row. Lindsay has

gotten 14 jumps in a row, and Lorraine has gotten 13. How many more jumps (j) do they need to match the record? Show your work!

1 answer:

Luden [163]3 years ago

6 0

11 14j+13j=48j 27j=48j subtract 27 from both sides j=11

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The 3rd and 6th term of a geometric progression are 9/2 and 243/16 respectively find the first term, common ratio, seventh term

sashaice [31]

Answer:

Hello,

Step-by-step explanation:

$Let\ (u_n)\ the\ geometric\ progression.\\\\r\ is\ the\ common\ ratio.\\\\u_3=u_0*r^3\\u_6=u_0*r^6\\\\\dfrac{u_6}{u_3} =r^3=\dfrac{\frac{243}{16} }{\frac{9}{2} } =\dfrac{27}{8} =(\frac{3}{2} )^3\\\\\boxed{r=\dfrac{3}{2} }\\\\\\u_3=u_1*r^2 \Longrightarrow\ u_1=\dfrac{u_3}{r^2} =\dfrac{\frac{9}{2} }{(\frac{3}{2^2}) } =2\\\\\\u_7=u_6*\dfrac{3}{2} =\dfrac{729}{32}$

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3 years ago

it's 3 miles around Westwood Park exercise Trail. after skating around the trail 5 and 1/2 times Mr Zorn lost a wheel. how many

svet-max [94.6K]

Mr. Zorn had skated total 17 miles.

<u><em>Explanation</em></u>

The length of the exercise trail around the Westwood park is 3 miles.

Mr. Zorn is skating around the trail 5 and 1/2 times.

So, the distance skated in 5 times $= (3* 5) miles = 15 miles$

and the distance skated in $\frac{1}{2}$ of the trail $= (3* \frac{1}{2})miles = 1.5 miles$

Thus, the total distance he had skated will be: $(15+1.5) miles = 16.5 miles \approx 17 miles$ <em>(Rounded to the nearest mile)</em>

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3 years ago

What is the domain of the function f(x) =startroot 1/3x+2

Nutka1998 [239]

Answer:

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3 years ago

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Simplify the expression using the order of operations: (21−3)÷32 6th grade math btw

amid [387]

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Step-by-step explanation:

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I need help. This is due later today.

Wittaler [7]

Answer:

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Step-by-step explanation:

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3 years ago