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3 years ago

There is a group of 10 people ordering pizza. If each person

Mathematics

2 answers:

Vikki [24]3 years ago

5 0

Answer:4 boxes

Step-by-step explanation: There are 10 people and 3 slices each that is already 30 slices. Since each box contains 8 slices, they should get 4 boxes which is 34 slices that is the closest one.

VashaNatasha [74]3 years ago

4 0

Answer:

Step-by-step explanation:

If ten people each get three slices, they will need 30 pieces.

10 x 3 = 30

Each pizza has 8 slices, so we divide 30 by 8 to get the number of pizzas needed.

30 / 8 = 3.75

You can't buy 3.75 pizzas, so you must get 4 to ensure everyone gets enough.

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4 years ago

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Please solve with explanation I’ve been asking all day (this is not a multiple choice question)

Anastaziya [24]

Answer:

a) $SA = 522.9~cm^2$

b) $V_{cone} = 670.2~cm^3$

c) $V_{empty} = 1340.4~cm^3$

Step-by-step explanation:

For a cone,

$SA = \pi r (L + r)$

where L = slant height

$L = \sqrt{r^2 + h^2}$

We have r = 8 cm; h = 10 cm

$L = \sqrt{(8~cm)^2 + (10~cm)^2}$

$L = \sqrt{164~cm^2}$

$SA = (\pi)(8~cm)(\sqrt{164~cm^2} + 8~cm)$

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$V_{cone} = \dfrac{1}{3}(\pi)(8~cm)^2(10~cm)$

$V_{cone} = 670.2~cm^3$

$V_{cylinder} = \pi r^2 h$

empty space = volume of cylinder - volume of cone

$V_{empty} = V_{cylinder} - V_{cone}$

$V_{empty} = \pi r^2 h - \dfrac{1}{3}\pi r^2 h$

$V_{empty} = (\pi)(8~cm)^2(10~cm) - \dfrac{1}{3}(\pi)(8~cm)^2(10~cm)$

$V_{empty} = 1340.4~cm^3$

3 0

3 years ago

3x + 2y = 14 x + 2y = 6

patriot [66]

Answer:

Step-by-step explanation:

3x+2y=14

x+2y=6

2x=8

x=4

Substitute 4 x in equation 1

3(4)+2y=14

y=1

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steposvetlana [31]

Answer:

C and E

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Choice A has a rational term. This is not polynomial.

Choice B has an exponent of -2 which is actually division. This is rational and not polynomial.

Choice D has a radical term with the variable. This is not polynomial.

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Step-by-step explanation:

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