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Contact [7]
3 years ago
5

8(За + 6) = 9(2а — 4)

Mathematics
1 answer:
Ede4ka [16]3 years ago
3 0

Answer: <em>A = -14</em>

Step-by-step explanation:

<em>First, remove the parentheses</em>

<em>8(3a+6) =9(2a-4)</em>

<u><em>24a+48=9(2a-4)</em></u>

<em>Move the terms</em>

<em>24a+48=18a-36</em>

<u><em>24a-18a+48=-36</em></u>

<em>Collect the like terms (Calculate)</em>

<em>24a-18a=-36-48</em>

<u><em>6a=-36-48</em></u>

<em>Divide by both sides</em>

<em>6a=-84</em>

<em>Solution: a=-14</em>

<u><em /></u>

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112 students are going on a field trip. If each bus can take 50 students, how many busses are needed?
MrRissso [65]

Answer:

3 buses are needed.

Step-by-step explanation:

If there are only 2 buses, it would be full, but there would still be 12 students without a bus. To take all students, you'd need 3 buses. 2 buses will be full, and the other bus would only have 12 students.

8 0
3 years ago
Read 2 more answers
The sum of the first k terms in the sequence is 118096, find the value of k. The first term is 78732 the common ratio is 1/3.
FrozenT [24]

Answer:

k = 10

Step-by-step explanation:

The sum of k terms of a geometric sequence with first term a1 and common ratio r is given by ...

... Sk = a1·(1 -r^k)/(1 -r)

For the given numbers, this is ...

... 118096 = 78732·(1 -(1/3)^k)/(1 -1/3)

Manipulating this to get the term containing k, we have

... 1 -(2/3)(118096/78732) = (1/3)^k

... 1/59049 = (1/3)^k

Taking logarithms, we get

... -log(59049) = -k·log(3)

... log(59049)/log(3) = k = 10

8 0
3 years ago
Let f(x) = 5x + 6 and g(x) = -7x - 4. <br> Find f(x) + g(x)
sattari [20]
5x + 6 + (-7x - 4)

5x + 6 - 7x - 4

-2x + 2
4 0
3 years ago
IM SICK OF ALL THE FAKE LINKS! Can I get help?
Virty [35]

Answer:

equation: 28 = 2h+ h + h or you could say 28 = 4h

h= 7

Step-by-step explanation:

since both lines are the same length they equal each other.

to get h = 7 you have to solve the equation you made.

28 = 4h

28/4 = 4h/4

7 = h

mark as brainliest please :)

5 0
3 years ago
PLEASE HELP
posledela
It is A because the sum of E is 0+5=5 which is greater than 4 and X is 5+0=5 which is greater than four
4 0
3 years ago
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