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Salsk061 [2.6K]
3 years ago
12

Solve each system by substitution. 1. x = y + 2 2y + x = 17

Mathematics
1 answer:
Arada [10]3 years ago
7 0
The answer is 19/2 , 15/2
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Suppose that Frida selects a ball by first picking one of two boxes at random and then selecting a ball from this box at random.
BaLLatris [955]

Answer:

3/4

Step-by-step explanation:

Given the following :

Number of boxes = 2

First box :

White balls = 3

Blue balls = 2

Second box:

White balls = 4

Blue balls = 1

What is the probability that Frida picked a ball from the first box if she has selected a blue ball?

Probability (P) = (required outcome / Total possible outcomes)

Probability of picking first box : P(F) = 1/2

Probability of not picking second box :P(S) 1/2

Probability of picking blue from first box : P(B | F) = 3/5

Probability of picking blue, but not from first box : P(Blue not from second box) P(B|S) = 1/5

probability that Frida picked a ball from the first box if she has selected a blue ball?

P(F) * P(B|F) ÷ (P(F) * P(B|F)) + (P(S) * P(B|S))

(1/2 * 3/5) ÷ ((1/2 *3/5) + (1/2 * 1/5)

3/10 ÷ (3/10 + 1/10)

3/10 ÷ 4/10

3/10 * 10/4

= 3/4

7 0
3 years ago
Select All ordered pairs that satisfy the function y= 5x + 5
denis-greek [22]

Answer:

A, B,and C

Step-by-step explanation:

Hopefully this helps

4 0
3 years ago
Question 1: The Millers have hired an interior designer to decorate their family room. they want to have a 22" by 30" oil painti
____ [38]

Answer: Total molding cost is $197.20.

Step-by-step explanation:

Since we have given that

Length of oil painting frame = 22 inch

Width of oil painting frame = 30 inch

Width for molding = 4 inches

So, Length after molding would be

4+22+4 = 30 inches

Width after molding would be

4+30+4 = 38 inches

So, Perimeter of molding would be

2(L+B)\\\\=2(30+38)\\\\=2\times 68\\\\=136\ inches

Cost per inch = $1.45

So, Total molding cost would be

1.45\times 136\\\\=\$197.20

Hence, Total molding cost is $197.20.

6 0
3 years ago
Two lines, A and B, are represented by the equations given below.
Marina CMI [18]

Answer:

JUST WANT POINTS

Step-by-step explanation:

7 0
3 years ago
Σ (4m2 + 4)<br> = 1<br> how do i rewrite each series as a sum?
Anettt [7]

Answer:

what does that E thing mean

Step-by-step explanation:

4 0
4 years ago
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