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2 years ago

Alison made a three-layer gelatin dessert that was 15 cm long by 10 cm wide. The heights of the layers were 3 cm,

Mathematics

2 answers:

leonid [27]2 years ago

6 0

Answer:

600 cm sq

Step-by-step explanation:

1 15 times 10 times 3= 450

2 15 times 10 times 2= 300

3 15 times 10 times 1 = 150

4 Add all your answers and get 600 cm sq

iragen [17]2 years ago

6 0

Answer:

900

Step-by-step explanation:

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Two boys play basketball in the following way. They take turns shooting and stop when a basket is made. Player A goes first with

Softa [21]

Answer:

P(A) = p1 (1 − q1q2)

Step-by-step explanation:

Let A = player A wins,

then P(A) = p1 + (1 − p1)(1 − p2)P(A)

⇒ P(A) = p1 (1 − q1q2)

6 0

2 years ago

How many ways are there to seat six different boys and six different girls along one side of a long table with 12 seats? how man

GaryK [48]

Q1: 479 001 600 ways

Explanation:
You have 12 people, 12 seats, ¹²P₁₂ ways in arranging them, or essentially 12! ways

Q2: 1 036 800 ways

Explanation:
Let's break it up into two cases.

Case 1: BGBGBGBGBGBG
Case 2:GBGBGBGBGBGB

Let's deal with case 1, because case 2 will pop out. There are ⁶P₆ ways in sorting out the boys and ⁶P₆ ways in sorting out the girls, so for case 1, we'd have (⁶P₆)² ways in sorting out boys and girls in case 1.

This is exactly the same in case 2, so it'd be (⁶P₆)² ways in sorting out girls and boys in case 2.

So, (⁶P₆)² + (⁶P₆)² ways = 1 036 800 ways if they alternate

3 0

2 years ago

A truck is bought at the price of $60,000. The value decreases at the rate of .25 every year (t). The exponential expression 60,

ziro4ka [17]

It is B because you have to subtract and than you have to add

8 0

2 years ago

The perimeter of a pool table is about 7.8m. four times the length equals nine times the width. What are the dimensions of the t

Nana76 [90]

The pool's dimension are l = 2.7 m and w = 1.2 m

Step-by-step explanation:

Step 1 :

Given

The pool's perimeter = 7.8 m

Four times the pool's length = nine times the pool's width.

=> 4l = 9w => l = ( $\frac{9}{4}$ ) w

Where l is the pool's length and w is the pool's width

Step 2:

The rectangle's formula for perimeter is 2 (l+w)

Substituting l = ( $\frac{9}{4}$ ) w ,

2[ ( $\frac{9}{4}$ ) w + w] = 7.8 (given)

( $\frac{13}{2}$ ) w = 7.8 = > w = 1.2 m

Step 3 :

l = ( $\frac{9}{4}$ ) w = ( $\frac{9}{4}$ ) 1.2 = 2.7

l = 2.7 m

Step 4 :

Answer :

The pool's dimension are l = 2.7 m and w = 1.2 m

6 0

2 years ago

01:57:09 In a city, the distance between the library and the police station is 3 miles less than twice the distance between the

tester [92]

Answer:

Distance between the police station and the fire station be 4 miles

Step-by-step explanation:

Let distance between the police station and the fire station be x miles.

The distance between the library and the police station is 3 miles less than twice the distance between the police station and the fire station.

Distance between the library and the police station $=2x-3$

Also, distance between the library and the police station is 5 miles.

$2x-3=5\\2x=3+5\\2x=8\\x=\frac{8}{2}\\ x=4\,\,miles$

8 0

2 years ago