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chubhunter [2.5K]
3 years ago
14

21-x=13 telllllllllll mee​

Mathematics
2 answers:
lina2011 [118]3 years ago
7 0

Answer:

x = 8

Step-by-step explanation:

21 - x = 13 \\  - x = 13 - 21 \\  - x =  - 8 \\ x = 8

BaLLatris [955]3 years ago
4 0

Answer:

x = 8

Step-by-step explanation:

21-x=13 \\ x = 21 - 13 \\ x = 8

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Need your help ASAP please help
eduard

His average is 86 so it is below 90.  to get his average i just added all of his grades up to get 517 and then I divided 517 by 6 because thats how many grades he has and I got 86.

On the Grade row in the table it would go 83, 94, 79, 90, 96, 75 in order

The Above/Below 90 row would go -7, 4, 11, 7, -6, -3 in order

Lamont needs to get a 99 on his next test to have an average of exactly 90.


I HOPE THIS HELPED! PLEASE RATE ME AND MAKE MY ANSWER MOST BRAINLIEST!!

5 0
3 years ago
You buy a lottery ticket to a lottery that costs $10 per ticket. There are only 100 tickets available to be sold in this lottery
riadik2000 [5.3K]

Answer:

Loss of $1.20

Step-by-step explanation:

The possible outcomes for this lottery and their probabilities are:

- a 1 in 100 chance of winning $450

- a 2 in 100 chance of winning $120

- a 4 in 100 chance of winning $30

- a 93 in 100 chance of losing $10

Therefore, the expected value of this lottery when buying one ticket is:

E(X) = \frac{1}{100}*\$450+ \frac{2}{100}*\$120+ \frac{4}{100}*\$30-\frac{93}{100}*\$10 \\E(X) = -\$1.2

Therefore, you are expected to lose $1.2 per ticket.

3 0
3 years ago
René is twice as old as Jim In four years the sum of their ages is 60 how old are they now
Brrunno [24]
R=16
J=32
20+40(which is 20×2)=60
20-4=16
16×2=32
3 0
3 years ago
The average cost per person of attending an online class depends on the number of people attending. If 20 people attend, the web
kondaur [170]

Answer:

The last table given See attached image)

Step-by-step explanation:

Notice that they are asking for the inverse function to the one with the detailed relationship given. The original relationship was assigning to the Domain of number of people attending, the Range of values for charges.

Therefore, the inverse function will be assigning in the opposite way: from the average charges (now the Domain of this relationship), to the number of people attending (now the Range of this relationship). The relationship should also maintain the original element to element connection:

What was:

(20, $10) should now be ($10, 20)

(26, $6.25) should now be ($6.25, 26)

(35, $4) should now be ($4, 35)

This is exactly represented by the last table (see also image attached)

5 0
3 years ago
Read 2 more answers
Marti had of a pizza remaining after
o-na [289]
I think it is 1/2
hope this helped
8 0
3 years ago
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