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SVEN [57.7K]
3 years ago
9

Mary needs to order pizza for 18 students. Each student should get 1/4 of the pizza. How much pizza will be left over?

Mathematics
1 answer:
Inessa [10]3 years ago
4 0

Answer:

Step-by-step explanation:

Answer:

Order 5 pizza's. There is  

1

2

a pizza left so someone gets an extra portion! Or it is split evenly!

Explanation:

No matter how you present this, the underlying principle is that of ratio.

If each pupil gets  

1

4

of a pizza the 1 pizza feeds 4 students.

So the ratio of  

pizza count

Student count

→

1

4

Need to have sufficient pizza for 18 students. The ratio will be constant so we have:

Let the count of pizzas be  

p

pizza count

Student count

=

1

4

=

p

18

So we now have:

 

p

18

=

1

4

Multiply both sides by  

18

giving:

18

×

p

18

=

1

4

×

18

18

18

×

p

=

18

4

But  

18

18

=

1

p

=

18

4

=

4

1

2

You can not order  

1

2

a pizza so the total pizza count is 5

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Answer:

0.08\ kg/m^3

Step-by-step explanation:

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Given the mass= 15.3kg and volume as above, we calculate density as:

\rho=\frac{Mass}{Volume}\\\\=\frac{15.3\ kg}{197.82\ m^3}\\\\=0.0773\approx 0.08\ kg/m^3

Hence, the solid's density is 0.08\ kg/m^3

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Find volume of a sphere with radius of 20 mm use 3.14 as pi
Vlada [557]

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Since pi=3.14 and r=20, we have:

V=4/3*3.14*20^3

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V=33493.33333

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Hope this helped!

6 0
3 years ago
If quadrilateral PQRS is a rectangle, then which of the following is true?
brilliants [131]

∠STP ≅ ∠QTR is the True statement ⇒ answer C

Step-by-step explanation:

In any rectangle

1. Each two opposite sides are equal and parallel

2. The measure of its vertex angles is 90°

3. The two diagonals are equal

Now lets find the true statements

∵ PQRS is a rectangle

∴ PS = QR ⇒ opposite sides

∴ PQ = SR ⇒ opposite sides

∴ PR = QS ⇒ diagonals

A.  ∠PSQ ≅ ∠QSR

∵ The diagonals of the rectangle do not bisect the vertex angles

∴ AQ does not bisect angle S

∴  m∠PSQ ≠ m∠QSR

∴  ∠PSQ not congruent ∠QSR

∠PSQ ≅ ∠QSR ⇒ False

B. segment SR ≅ segment RQ

∵ SR and RQ are two adjacent sides

∵ The adjacent side in the rectangle not equal

∴ SR ≠ QR

∴ segment SR not congruent to segment RQ

segment SR ≅ segment RQ ⇒ False

C. ∠STP ≅ ∠QTR

∵ PR intersects QS at point T

∴ m∠STP = m∠QTR ⇒ vertically opposite angles

∴ ∠STP ≅ ∠QTR

∠STP ≅ ∠QTR ⇒ True

D. segment PS ≅ segment PR

∵ PS is a side in the rectangle

∵ PR is a diagonal in the rectangle

∵ The side of the rectangle not equal the diagonal of the rectangle

∴ PS ≠ PR

∴ segment PS not congruent to segment PR

segment PS ≅ segment PR ⇒ False

∠STP ≅ ∠QTR is the True statement

Learn more:

You can learn more about rectangle in brainly.com/question/6594923

#LearnwithBrainly

8 0
3 years ago
Read 2 more answers
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