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dolphi86 [110]
3 years ago
9

You pick a card at random, put it back, and then pick another card at random. 3 4 5 What is the probability of picking a number

greater than 3 and then picking an even number?
Mathematics
1 answer:
Fudgin [204]3 years ago
6 0

3/3 because you have Two numbers that are greater than three out of three numbers which will give you 2/3 and then you have four which is an even number out of three numbers which will give you 1/3 you add them together which will give you 3/3 and which will equal one whole

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you have a piece of wood that is 72 inches long u cut the wood into three pieces the second piece is 6 inches longer than the fi
tangare [24]

Let

x---------> the length of the first piece

y---------> the length of the second piece

z---------> the length of the third piece

we know that

x+y+z=72 -------> equation 1

y=x+6 -----> solve for x

x=y-6 -------> equation 2

z=6+y -------> equation 3

substitute equation 2 and equation 3 in equation 1

[y-6]+y+[6+y]=72

3y=72

y=(72/3)=24 in

<u>Find the value of x</u>

x=y-6 -------> equation 2

x=24-6=18 in

<u>Find the value of z</u>

z=6+y -------> equation 3

z=6+24=30 in

therefore

<u>the answer is</u>

the length of the first piece is 18 in

the length of the second piece 24 in

the length of the third piece is 30 in

7 0
3 years ago
In a bag, there are 5 cards numbered 1 to 5. Each time a card is randomly selected, it I'd replaced in the bag. What is the prob
sweet [91]

Out of 5 cards in the bag ...

-- There are 2 even numbers . . . 2 and 4 .

-- There are 3 odd numbers . . . 1, 3, and 5 .

So EITHER time, the probability of pulling an even number is  2/5 ,
and the probability of pulling an odd number is  3/5 .

The probability of pulling an even number the first time
AND an odd number the second time is

       (2/5) x (3/5)  =  6/25  =  <em>24%</em> .

 
3 0
3 years ago
Read 2 more answers
5. Melanie can run around the track 9 times
Zina [86]

Answer: 3.36

Step-by-step explanation: 75minutes / 28= 2.678571428571429

9/2.678571428571429=3.36 times

3 0
3 years ago
Read 2 more answers
Which equation is the direct variation equation if f(x) varies directly with x and f(x)=-18 when x=3
Otrada [13]
\bf \qquad \qquad \textit{direct proportional variation}\\\\&#10;\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  \stackrel{f(x)}{y}=kx\impliedby &#10;\begin{array}{llll}&#10;k=constant\ of\\&#10;\qquad  variation&#10;\end{array}\\\\&#10;-------------------------------\\\\&#10;\textit{we also know that }&#10;\begin{cases}&#10;y=-18\\&#10;x=3&#10;\end{cases}\implies -18=k3&#10;\\\\\\&#10;\cfrac{-18}{3}=k\implies -6=k\qquad therefore\qquad \boxed{\stackrel{f(x)}{y}=-6x}
5 0
3 years ago
What expression is equivalent to 3log 4+log 6-log 8?
Svetradugi [14.3K]

Answer:log48

Step-by-step explanation:

3log4+log6-log8

log4^3 + log6 - log8

log(4x4x4)+log6-log8

log64 + log6 - log8

log((64x6) ➗ 8)

log(384 ➗ 8)

log48

5 0
3 years ago
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