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miss Akunina [59]
2 years ago
11

A bag contains 5 black marbles, 7 blue marbles, 3 green marbles, 4 red marbles, and 1 white marble. A marble is selected and the

n replaced and a second marble is chosen. What is the probability of selecting a black marble and then a red marble?
Mathematics
1 answer:
schepotkina [342]2 years ago
5 0

Answer:

2/25

Step-by-step explanation:

It will be 20/400 + 12/400

=2/25

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Find the measure of the missing angles.
Sergio039 [100]

Answer:

d = 105° , e = 32° , f = 43°

Step-by-step explanation:

d and 105° are vertically opposite angles and are congruent , then

d = 105°

e and 32° are vertically opposite angles and are congruent , then

e = 32°

105° , e and f lie on a straight line and sum to 180° , that is

105° + e + f = 180°

105° + 32° + f = 180°

137° + f = 180° ( subtract 137° from both sides )

f = 43°

8 0
2 years ago
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What is 2 2/15 - 1 2/3=<br> I ended up with 2 3/21 <br> Really need help with this!
QveST [7]

Answer:

2 \frac{2}{15}  - 1 \frac{2}{3}

=  \frac{32}{15}  -  \frac{5}{3}

=  \frac{32 \times 1 - 5 \times 5}{15}

= \frac{32 - 25}{15}

=  \frac{7}{15}

5 0
2 years ago
A graph of a quadratic function is shown below.
stira [4]

Answer:

d. (10,800)

Step-by-step explanation:

Vertex appears to be at x = 10

Vertex: (10,800)

6 0
3 years ago
Josh $600 into an account that pays simple interest at a rate of 4% per year. How much interest will he be paid in the first 4 y
galben [10]

Answer:

i think its 96 dollars

Step-by-step explanation:

600 × .06 = 24

24 × 4 = 96

6 0
3 years ago
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Find three consecutive even integers whose sum is 396
vfiekz [6]
X+(x+2)+(x+4)=396, x+x+x+6=396, 3x+6=396, 3x=396-6, 3x=390, x=130, x+2=130+2=132, x+4=130+4=134. The three consecutive even integers are 130, 132, 134
8 0
3 years ago
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