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bazaltina [42]
2 years ago
15

Make p the subject of the formula. 4(p-2p)=3+2

Mathematics
1 answer:
liberstina [14]2 years ago
4 0

Answer:

p=-5/4

Step-by-step explanation:

expand brackets

4p-8p=3+2

simplify

-4p=5

divide by -4

p=-5/4

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Is the same as the quotient 4.85÷0.74.85÷0.7?
Volgvan
0.7 85.0.74 4.85        

Hope I helped

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4 0
3 years ago
A bag contains 2 red marbles and 3 black marbles. If Abby picks a marble without looking, returns it to the bag, and then draws
Diano4ka-milaya [45]
Answer: 4/25

=========================================

Explanation:

Let's define two events A and B
A = event of selecting red on the first draw
B = event of selecting red on the second draw

P(A) is the notation that means "probability of event A occurring"

P(A) = 2/5 because there are 2 red marbles out of 5 total (2 red + 3 black = 5)
Similarly, P(B) = 2/5 as well because A and B deal with the same color red, and because Abby put the first marble back

Multiply the probabilities
P(A and B) = P(A)*P(B) ... see note below
P(A and B) = (2/5)*(2/5)
P(A and B) = (2*2)/(5*5)
P(A and B) = 4/25 which is the answer

Note: the equation used is only valid if events A and B are independent, which they are in this case. The fact we put the marble back means the chances of picking red are the same as before.

8 0
3 years ago
Read 2 more answers
PLS HELP ME!!!!
saw5 [17]

Answer:

32x+4+20+4+6x=180

38x+28=180

38x=152

x=4

4+6(4)

4+24

28

Step-by-step explanation:

please give brainliest!!

7 0
2 years ago
Read 2 more answers
Solve for w. 5w + 9z = 2z + 3w
Margaret [11]

Answer:

w = -7z/2

Step-by-step explanation:

Our goal is to isolate w

1. subtract 3w from both sides to get 2w+9z = 2z

2. Subtract 9z from both sides to get 2w = -7z

3. Divide both sides by 2 to get w = -7z/2

We cannot simplify further, so this is our answer.

4 0
3 years ago
Find the median of the set of data. Use a calculator if necessary. (Remember to put the list in numerical order.)
GalinKa [24]

Answer:

9

Step-by-step explanation:

To find the median of a set of data, arrange the data by value:

6, 7, 9, 12, 13

The number in the middle is the median.

5 0
3 years ago
Read 2 more answers
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