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3 years ago

What is the volume of a sphere with a diameter of 7,5 cm, rounded to the nearest

Mathematics

1 answer:

Nastasia [14]3 years ago

4 0

Answer:

179.59

Step-by-step explanation:

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There are premium tickets costing $99 each and rest are regualr tickets costing $25 each. A pile of 120 tickets have a total val

polet [3.4K]

Answer:

There are 38 premium tickets and 82 regular tickets in a pile.

Step-by-step explanation:

Given,

Total number of tickets = 120

Total amount = $5812

Solution,

Let the number of premium tickets be x.

And the number of regular tickets be y.

Total number of tickets is the sum of total number of premium tickets and total number of regular tickets.

So the equation can be written as;

$x+y=120\ \ \ \ \ equation\ 1$

Again,total amount is the sum of total number of premium tickets multiplied by cost of each premium ticket and total number of regular tickets multiplied by cost of each regular ticket.

So the equation can be written as;

$99x+25y=5812\ \ \ \ equation\ 2$

Now We will multiply equation 1 by 25 we get;

$x+y=120\\25(x+y)=120\times25\\25x+25y= 3000 \ \ \ \ equation\ 3$

Now Subtracting equation 3 from equation 2 we get;

$(99x+25y)-(25x+25y)=5812-3000\\\\99x+25y-25x-25y=2812\\\\74x=2812\\\\x=\frac{2812}{74}=38$

We will now substitute the value of x in equation 1 we get;

$x+y=120\\38+y=120\\y=120-38\\y=82$

Hence There are 38 premium tickets and 82 regular tickets in a pile.

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3 years ago

Complete the recursive formula of the geometric sequence -0.3, 0.9, -2.7, 8.1. ....

SSSSS [86.1K]

Answer:

(-1)ⁿ(3)ⁿ/10

Step-by-step explanation:

The first term a = 0.3, the second term, ar = 0.9. The common ratio r = ar/a = 0.9/-0.3 = -3.

From the general term of a geometric series,

U = arⁿ⁻¹

= (0.3)(-3)ⁿ⁻¹

= (3/10)(-3)ⁿ⁻¹

= (-1)ⁿ⁻¹(3)(3)ⁿ⁻¹/10

= (-1)ⁿ(3)ⁿ/10

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3 years ago

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navik [9.2K]

It is 9lt-2w-27! Hope it helped!

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3 years ago

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Brayden is making soup. To make the broth, he combines 23cup of vegetable stock and 25cup of chicken stock. Boiling the broth ca

xxTIMURxx [149]

Answer:

Step-by-step explanation:

It is this answer because 23+25 is 48 and 48-14 is 34

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2 years ago

Math homework pls help

ivann1987 [24]

Answer:

I believe it is A. Since the p-value is less than the significance level, you must reject the null hypothesis.

Step-by-step explanation:

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3 years ago