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astraxan [27]
3 years ago
7

8x-1<15 NO one will help plss someone hellpppp

Mathematics
2 answers:
romanna [79]3 years ago
7 0

Answer:

x < 2

Step-by-step explanation:

8x -1 < 15

8x -1 (+ 1) < 15 (+ 1)

8x < 16

\frac{8x}{8} < \frac{16}{8}

x < 2

hodyreva [135]3 years ago
4 0
The answer will be X < 2
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Please answer with clear instructions so that i can apply this to other questions.
kvv77 [185]

Answer:

10 terms

Step-by-step explanation:

equate the sum formula to 55 and solve for n

\frac{1}{2} n(n + 1) = 55 ( multiply both sides by 2 to clear the fraction )

n(n + 1) = 110 ← distribute parenthesis on left side

n² + n = 110 ( subtract 110 from both sides )

n² + n - 110 = 0 ← in standard form

Consider the factors of the constant term (- 110) which sum to give the coefficient of the n- term (+ 1)

the factors are + 11 and - 10 , since

11 × - 10 = - 110 and 11 - 10 = + 1 , then

(n + 11)(n - 10) = 0 ← in factored form

equate each factor to zero and solve for n

n + 11 = 0 ⇒ n = - 11

n - 10 = 0 ⇒ n = 10

However, n > 0 , then n = 10

number of terms which sum to 55 is 10

7 0
2 years ago
Explain your answer !! <br> Have a nice day
gregori [183]
Oh gosh oh I don’t have to get My to come
7 0
2 years ago
4/5 and 3/7 plz help
Anika [276]

Answer:

What are you trying to ask

Step-by-step explanation:


5 0
3 years ago
Solve-3.5+4.2=?solve
cluponka [151]
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2 years ago
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Factor x^2 + 4x - 21
babymother [125]

Answer:

(x - 3)(x + 7)

Step-by-step explanation:

x^2 + 4x - 21

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5 0
3 years ago
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