2 years ago

One number is 1/2 of another number the sum of the two numbers is 27 find the two numbers

Mathematics

1 answer:

Art [367]2 years ago

4 0

Filling up the space because it has to be 20 characters

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Find all complex numbers z such that z^4 = -4.

Kryger [21]

42 x16 is this right ?

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2 years ago

Solve: X=4+(4x-4)

11111nata11111 [884]

Answer:

answer is 10

Step-by-step explanation:

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3 years ago

Mr. O'Connor had $90 to spend at a football game. He spent 31/45 on his ticket. Then, he spent 3/7 of his remaining money at the

Kobotan [32]

He has $90 in total to spend

He spent (31/45) of this money on ticket

so money spent on ticket =(31/45) *90 =2790/45 =62

Now money left with him is 90-62 =28 $

Now it says that he spent (3/7) of this remaining money at concession stand

so money spent on concession stand =(3/7)*28 =84/7 =12

Now money left with him = 28-12 =16

So money left with him is $16 but hat costs for $18

So Mr. O'Connor didnt have enough moeny to buy the hat

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2 years ago

Will mark brainlist + 30 points .. please help asap!!

zheka24 [161]

Answer:

is 20 is your answer I believe

8 0

2 years ago

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The weights of dogs at a kennel are Normally distributed with a mean of 18 pounds and a standard deviation of 3.5 pounds.In whic

Ierofanga [76]

Answer:

P(x=25)=P(z=2)=0.9972 or 99.72%

Step-by-step explanation:

Mean = 18 pounds

Standard Deviation = 3.5 pounds

x= 25

We need to find P(x=25)

First, we need to find z-score using formula: $z-score=\frac{x-\mu}{\sigma}$

Finding z-score when x=25

$z-score=\frac{x-\mu}{\sigma}\\z-score=\frac{25-18}{3.5}\\z-score=2$

So, we need to find P(z=2)=P(x=25)

Looking at z-score table we can find P(z=2)

P(z=2)=0.9972 or 99.72%

So, P(z=2)=0.9972 or 99.72%

3 0

2 years ago

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