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Sergio039 [100]

3 years ago

10

Para una función de teatro para niños, el boleto para adultos cuesta $70 y el boleto para niños $35. Anoche entraron en total 80

personas y se recaudaron $4025. ¿Cuántos adultos y cuántos niños entraron?

1 answer:

Tresset [83]3 years ago

6 0

No se como explicar como lo hice pero hay 35 boletos para adultos y 45 boletos para niños.

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Given ,

7/3 = n/21

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Cross multiplying,we get

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=> 3n = 147

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=> n = 49 is the required answer

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Find the square root of 25/49

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Answer: 5/7

Step-by-step explanation:

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Find the average value of f over region

SVETLANKA909090 [29]

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$\displaystyle\frac74\iint_Dxy\,\mathrm dA$

In the $x,y$ -plane, we can describe the region $D$ as all points $(x,y)$ that lie between the lines $y=0$ and $y=8x$ (the lines which coincide with the triangle's base and hypotenuse, respectively), taking $0\le x\le1$ . So, the integral is given by, and evaluates to,

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3 years ago

Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer.

valentinak56 [21]

Answer:

1,225 miles = 77616000 inches

Step-by-step explanation:

It is asked to find the number of inches in 1,225 miles

Given

1 inch ≈ 1.578 × 10^-5 miles

Therefore, 1 mile = 63360 inches

Therefore, 1,225 miles = 1225 x 63360 inches

1,225 miles = 77616000 inches

or 1,225 miles = 7.7 x $10^{7}$ inches

Therefore the final answer is

1,225 miles = 77616000 inches

or 1,225 miles = 7.7 x $10^{7}$ inches

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