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3 years ago

12

The probability of drawing three jacks in a row from a standard deck of cards when the drawn card is not returned to the deck ea

ch time is

1 answer:

natta225 [31]3 years ago

5 0

The probability of drawing three jacks in a row from a standard deck of cards is, 3/4 or 3:4

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jarptica [38.1K]

Answer:

3 gallons

Step-by-step explanation:

Let

x ----> the amount of pure acid (100% solution) in gallons

Remember that

$100\%=100/100=1$

$20\%=20/100=0.20$

$60\%=60/100=0.60$

we know that

$(1)(x)+(0.20)(3)=(0.60)(x+3)$

solve for x

$x+0.60=0.60x+1.80$

$x-0.60x=1.80-0.60\\0.40x=1.20\\x=3\ gal$

therefore

3 gallons of pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution

7 0

2 years ago

siniylev [52]

Answer:

(blue)

slope -( 3)

y-intercept -( -1)

equation - y=3x-1

(yellow)

slope -( 3)

y-intercept -( 0)

equation - y=3x

Step-by-step explanation:

I...your welcome

6 0

2 years ago

Suppose you had to find 4 x 57. How are the expanded algorithm and the standard algorithm alike? And how are they different?

Nookie1986 [14]

The expanded algorithm is given as follows:

4 x 57 = (4 x 50) + (4 x 7) = 200 + 28 = 228

The standard algorithm is given as follows:

$\ \ \ \ \ \ {_2}\\{ \ \ \ \ \ \ 5 \ 7} \\ \times \ \ \ \ \ 4 \\ = \overline{\underline{2\ 2\ 8}}$

4 0

2 years ago

Which lists all the multiples of 6 that are less than 20?

mel-nik [20]

6, 12, 18
..................

4 0

2 years ago

Read 2 more answers

1. An airplane moves at a constant speed of 120 miles per hour for 3 hours. How far does it go?d=rt Time Distance 1 hour 120 mil

Feliz [49]

Distance = speed rate x time

Speed rate = 120 miles per hour

Time = 3 hours

Replacing:

D = 120 mph x 3 h = 360 miles

5 0

8 months ago