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Troyanec [42]
3 years ago
9

A bag contains 4 red marbles and 5 blue marbles. If two marbles are chosen at random, one at a time and without replacement, wha

t is the probability of getting two red marbles?
Mathematics
1 answer:
Law Incorporation [45]3 years ago
7 0

|\Omega|=9\cdot8=72\\ |A|=4\cdot3=12\\\\ P(A)=\dfrac{12}{72}=\dfrac{1}{6}\approx17\%

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Are y = 6x + 9 and 27x – 3y = –81 parallel
jonny [76]
Nope, those lines are not parallel.
8 0
3 years ago
What whole number does this round to?
serious [3.7K]
To find this answer, just look at the place value next to the one you are trying to find.

You are trying to find the whole number (or 7). The place value digit to the right is 4, which is less than 5. Round down

Your answer is 7

hope this helps
8 0
3 years ago
Jim is saving nickels, dimes and quarters to buy a baseball mitt. He has 12 more
Harrizon [31]

Answer:

36 quarters   48 dimes  64 nickels

Step-by-step explanation:

quarter = q

dime = q+12

nickel = 2q-8

$17 = 1,700 cents

(q)25 + (q+12)10 + (2q-8)5 = 1,700

25q +10q+120  +10q-40 =1,700

45q+80 = 1,700

45q = 1620

q= 36      

 36     QUARTERS x25 =  900cents

 48 DIMES    x10      =         480 cents

  64 NICKELS x 5 =             320 cents

  TOTAL                              1,700 cents ($17)

5 0
3 years ago
Raquel went to Wellers department stores one day sale she bought two blouses for $38 each and a pair of shoes for $49 she also w
Oxana [17]
38+38+49+11.5x≤171
125+11.5x≤171
11.5x≤46
x≤4

Answer:She could buy 4 pieces of jewlery

Hope this helps:)
3 0
3 years ago
Read 2 more answers
(a) Use Euler's method with step size 0.2 to estimate y(1.4), where y(x) is the solution of the initial-value problem y' = 3x −
Archy [21]

Answer:

Step-by-step explanation:

5 0
3 years ago
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