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3 years ago

6

Mary owns 6 purple hats. If There are 45 zombies trying to attack her, and she hasnt ate dinner yet, how many pancakes can fit o

n the roof ?

1 answer:

Setler [38]3 years ago

3 0

Equation would be 45 x 91 / 6-2

Answer would be : -1
Best of luck!

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(x + y , x - y) = (4 , 2)

Naddika [18.5K]

Step-by-step explanation:

(x + y , x - y) = (4 , 2)

x+y=4 ------(1)

x-y=2 ------(2)

_____ (adding two equation)

2x=6

x=3

From equation 1

3+y=4

y=1

6 0

3 years ago

Suppose a family has three children of different ages. We assume that all combinations of boys and girls are equally likely. (a)

Ivan

Answer:

a) There are 8 possible combinations and each probability is 1/8.

b) The probability that it is a boy given that there are two girls is 3/8

Step-by-step explanation:

a) The sample space is given by:

BBB (3 boys)

BBG (Boy, boy, girl)

BGB (Boy, girl, boy)

BGG (Boy, girl, girl)

GBB (girl, boy, boy)

GBG (girl, boy, girl)

GGB (girl, girl, boy)

GGG (3 girls)

The probability of each combination is the same:

P(BBB)=P(B∩B∩B)= $\frac{1}{2} \frac{1}{2} \frac{1}{2}=\frac{1}{8}$

2) There are three possible combinations in which there are 2 girls and 1 boy:

BGG, GBG, GGB

So the probability is given by:

P(BGG ∪ GBG ∪ GGB)= $\frac{1}{2} \frac{1}{2} \frac{1}{2}+\frac{1}{2} \frac{1}{2} \frac{1}{2}+\frac{1}{2} \frac{1}{2} \frac{1}{2}=\frac{3}{8}$

6 0

3 years ago

Divide and write in simplest form 4/7 divided by 1 1/7

IrinaVladis [17]

First, change the mixed fraction into improper fraction

1 1/7 = 7/7 + 1/7 = 8/7

(4/7)/(8/7)

To solve, flip the second fraction, and change the division into multiplication

(4/7)/(8/7) = (4/7) x (7/8)

Multiply, and simplify

(4/7) x (7/8) = 28/56, or 1/2

1/2 is your answer

hope this helps

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3 years ago

Tommy Took a test which has 20 questions . The total grade was computed by awarding 10 points for each correct answer and deduct

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3 0

3 years ago

172.6 divided by 9. plz awnser in decimals. when i look it up on a calculator it said 19.1777777778

kow [346]

Answer:

it is 19.17

Step-by-step explanation

rounded it and its 19.17

8 0

3 years ago

Read 2 more answers