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BARSIC [14]
3 years ago
14

Find the 87th term of the arithmetic sequence -19, -13, -7, ...−19,−13,−7,...

Mathematics
1 answer:
NISA [10]3 years ago
6 0
-19 is the answer to this problem due to by dividing 87 by 3 you get a whole number 29 which shows it’s the first number
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What does X equal in this equation<br> -3/4x +1/5 = 2/3
Angelina_Jolie [31]

Answer:

x=\frac{-45}{28}

Step-by-step explanation:

Given equation:

\frac{-3}{4x}+\frac{1}{5}=\frac{2}{3}

Taking the LCM on the LHS, to make the equation in terms of 'x'

After taking LCM dividing the denominator by the above equation and multiplying numerator with the remaining value to make the equation given below

                               \frac{(-3)(5)+1(4x)}{(4x)(5)} =\frac{2}{3}

                                \frac{-15+4x}{20x}=\frac{2}{3}

On cross multiplication

                             (-15+4x)(3)=2(20x)\\-45+12x=40x

Taking the terms of x to one side to find 'x'

                               40x-12x=-45

                                      28x=-45\\x=\frac{-45}{28}

8 0
3 years ago
Chelsea's school is selling tickets to a choral performance. On the first day of ticket sales the school sold 3 adult tickets an
seropon [69]

Answer:

$7 for an adult ticket

$6 for a child ticket

Step-by-step explanation:

Add up the total child and adult tickets from both the days.

Adult tickets - 15

Child tickets- 10

Then I divided 165 but 25 and got 6.6.

The child ticket should be less than the adult so I guessed that the adult would be around $7 and the child ticket would be around 6.

I double checked my work by doing...

3*7 giving me 21

and

9*6 giving me 54.

Then I added these up to get $75 which was the total from the first day. This shows that our answer is correct

8 0
3 years ago
Look at the shapes of the graph pls help me
umka2103 [35]

There isn't anything attached

8 0
4 years ago
Karen is writing a word problem that can be represented by the equation 3+ 2 = 20.A box weighs 3 pounds and several 2 pound book
saul85 [17]
Her equation doesn't fit the word problem! It says several 2 pounds books but she put it as if there was one. She should have wrote the equation like this:
3 + 2x = 20 (where x represents the unknown amount of boxes)
and than you can just solve for x to find how many books there are
3 + 2x = 20
2x = 20
x = 10
So there are 10 books!

I hope that helps! Let me know if you have any questions :3
3 0
3 years ago
If you flip a coin and roll a 6-sided die, what is the probability that you will flip a tails and roll more than a 3?
pishuonlain [190]
Prob of tails times prob of rolling more than 3
0.5 × 0.5 = 0.25
25%
8 0
3 years ago
Read 2 more answers
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