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nevsk [136]
2 years ago
11

Substituting y = –2 back into the first equation gives

Mathematics
2 answers:
Elenna [48]2 years ago
4 0

Answer: idk the first equation

Step-by-step explanation:

katrin [286]2 years ago
3 0

Answer:

-2x+-6=-12

Step-by-step explanation:

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Matt Bonner has 8 dimes, 9 pennies, and 4 quarters in his pocket. If each coin is equally likely to be pulled out of his pocket
Lesechka [4]

Answer:

B. 0.602%

Step-by-step explanation:

Probability is essentially (# times specific event will occur) / (# times general event will occur). Here, we have a few specific events: draw a quarter, draw a second quarter, draw a penny, and draw another penny. The general event will just be the number of coins there are to choose from.

The probability that the first draw is a quarter will be 4 / (4 + 8 + 9) = 4/21.

Since we've drawn one now, there's only 21 - 1 = 20 total coins left. The probability of drawing a second quarter is: (4 - 1) / (21 - 1) = 3/20.

The probability of drawing a penny is: 9 / (20 - 1) = 9/19.

The probability of drawing a second penny is: (9 - 1) / (19 - 1) = 8/18.

Multiply these four probabilities together:

(4/21) * (3/20) * (9/19) * (8/18) = 864 / 143640 ≈ 0.602%

The answer is B.

8 0
3 years ago
Read 2 more answers
5d-2g=9 solve for g<br> Solve the literal equation
valina [46]
5d-2g=9 

-2g=9-5d 

g=- \dfrac{9-5d}{2}
4 0
3 years ago
Read 2 more answers
The 7th grade has 159 students. There are twice as many boys in the grade as there are girls.
aleksklad [387]

Answer:

106 boys

Step-by-step explanation:

7th grade = 159 students

Boys to girls ratio:

2:1

Find two thirds of 159:

2/3*159 = 106 boys

159-106= 53 girls

Check:

53*2 = 106

3 0
3 years ago
Read 2 more answers
Write a division problem whose quotient has its first digit in the hundreds place
Katen [24]
<span>Here's one --> 1000÷100=10</span>
6 0
3 years ago
Are these two expressions equivalent to each other?
disa [49]

Answer:

they are equivalent

Step-by-step explanation:

simplifying 12r + p -4r + 6p you get 8r + 7p

so yes they are equal

7 0
2 years ago
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