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77julia77 [94]
3 years ago
9

Subtract. (9x - 8) - (x + 4)

Mathematics
2 answers:
anzhelika [568]3 years ago
6 0

Answer:

12

Step-by-step explanation:

i used cymath if that helps

VMariaS [17]3 years ago
4 0

Answer: 8x-12

Step-by-step explanation:

Remove these () from the first pair

9x-8-(x+4)

Subtract 9x from x - X is always one unless they give you a certain number for x to be. Also remove the remainder parenthesis from the second pair of numbers.

9x-x = 8x

Add 8 to 4

8+4 = 12

Answer is 8x-12

I hope that I explained it more to the point where you understand it

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Answer:

4t and t+t+t+t

Plz mark as brainliest

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3 years ago
The number of free song downloads is determined using a ratio when you purchase 40 songs you get 24 free song downloads how many
natka813 [3]
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Hi I’m doing IXL and I’m having trouble with this one
maria [59]

Answer:

They are not equivalent.

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
You have a bag with 100 pennies. One of the 100 pennies is weighted so that it lands on heads 90% of the time. The rest of them
masha68 [24]

Answer:

0.160275

Step-by-step explanation:

P(5 time heads) =P(fair penny and 5 time heads + weighted penny and  5 time heads)

probability of fair penny = 99/100 (as one is removed)

probability of heads = 50% = 0.5 flipped 5 times

probability of weighted penny = 1/100

probability of heads for this penny = 90% = 0.9

substituting, we have

=(99/100) * (1/2)*5  +  (1/100) * (0.9)5  = 0.036842

hence from Bayes theorem

P(weighted penny | 5 time heads) =P(weighted penny and 5 time heads) / P(5 time heads)

=(1/100)*(0.9)5 /0.036842 =0.160275

6 0
3 years ago
Friday night's hockey game was attended by 180 students. This is about 60% of the school's population. What is the total populat
S_A_V [24]
180/60 = the number of student for 1%
180/60 = 3
so 1% of the school's population is 3 students

so, 3 x 100 = 300 students

and to check:

300 x .60 = 180

so, the total population of the school is 300
7 0
4 years ago
Read 2 more answers
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