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3 years ago

Giúp mình với mình không biết làm

Mathematics

1 answer:

Vladimir [108]3 years ago

4 0

Can you translate so I can help you out

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You flip a nickel 100 times and record your results: 35 heads and 65 tails. From your experimental data, what is the probability

musickatia [10]

Out of 100 flips, the nickel landed on tails 65 times.

P(tails)=65/100 or 0.65 or 65%

Answer 65%

4 0

3 years ago

Read 2 more answers

Ahmad’s father is 4 times as old as Ahmad. After 5 years, father will be three times as old as Ahmad. Find their present ages

Ilia_Sergeevich [38]

The present age of Ahmed and Ahmed's father is 12 and 36 respectively.

Step-by-step explanation:

Given : Ahmed's father is thrice as old as Ahmed. After 12 years, his age will be twice that of his son.

To Find : Their present age ?

Solution :

Let the Ahmed's age be 'x'.

Ahmed's father is thrice as old as Ahmed.

i.e. Ahmed's father age is '3x'

After 12 years, his age will be twice that of his son.

i.e. 3x+12 = 2(x+12)3x+12=2(x+12)

Solving the equation,

3x+12 = 2x+243x+12=2x+24

x=12x=12

So, Ahmed's age is 12.

Ahmed's father age is 3\times 12=363×12=36

Therefore, The present age of Ahmed and Ahmed's father is 12 and 36 respectively.

<h2>There is 3 times in space of 4 times please mark as brainlist</h2>

7 0

2 years ago

What is the simplified form of the following expression?<br> 6c^2 + 2.5d - d + 2c^2 - 3d

Airida [17]

Simplify the Expression.

8c^2 - 1.5d <span />

4 0

3 years ago

I WILL GIVE BRAINLIST, DUE IN 15 MIN

Burka [1]

Answer:

$34.50

Step-by-step explanation:

At 3.45 for 3/4 pounds that = to 4.60 for 1 pound.

4.60 *7.5 pounds= $34.50

7 0

3 years ago

There are three options for fans purchasing a band's new release CD. They can purchase the CD, a premium CD bundle, or a deluxe

cluponka [151]

Answer:

The price of CD's = $15

The price of deluxe bundles = $85

The price of premium bundles. = $ 35 ....

Step-by-step explanation:

Let c represents the number of CD's

Let d represents the number of deluxe bundles

Let p represents the number of premium bundles.

Now according to the given statement:

c = $15

d = c+2p =

d = 15+2p --------equation 1

455c+87p+35d = $12,845 --------equation 2

Now substitute the value of d in equation 2 to find the value of p

455c+87p+35d = $12,845

455(15)+87p+35(15+2p) = $12,845

6825+87p+525+70p=$12,845

Now combine the like terms:

6825+157p+525 = $12,845

Now shift all the like terms to the R.H.S

157p= 12845-6825-525

157p = 5495

Divide both sides by 157

157p/157 = 5495/157

p = 35

Now substitute the value p =35 in equation 1.

d = 15+ 2p

d = 15+2(35)

d = 15+70

d = 85

Therefore we have found that,

The price of CD's = $15

The price of deluxe bundles = $85

The price of premium bundles. = $ 35 ....

4 0

3 years ago