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kherson [118]
3 years ago
10

Find the value of x (7x-8) (6x+11)

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0

Answer:

x=-17

Step-by-step explanation:

because if you take away the x and put in the question then u will get -17 and just put x in front of it

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What is 5/6 as a equivalent fraction ​
goblinko [34]

Answer:

Step-by-step explanation:

I think I stays the same 5/6

8 0
3 years ago
La un concurs de matematica se dau 40 de probleme. Pentr fiecare raspuns corect se acorda 7 puncte, iar pentru fiecare raspuns g
Ratling [72]

Answer:

a primit 36 ​​corect ane 4 în mod greșit

Step-by-step explanation:

În această întrebare, ne preocupăm să calculăm numărul de răspunsuri corecte și de răspunsuri greșite pe care elevul le-a dat.

În primul rând, începem prin atribuirea de variabile.

Numărul de răspunsuri corecte să fie x în timp ce numărul de răspunsuri greșite să fie y

Deoarece există 40 de probleme în total, aceasta înseamnă că adăugarea ambelor este egală cu 40 matematic,

x + y = 40. ••• (i)

Acum să trecem la partea complicată. Fiecare răspuns corect = +7. Răspunsul corect total este astfel + 7x Fiecare răspuns greșit este = -5. Răspunsul total greșit este astfel -5y Punct total marcat = 232 Aceasta

înseamnă că; 7x -5y = 232 ••••••••• (ii)

De la i, putem spune y = 40 -x să punem acest lucru în ecuație

ii 7x -5 (40-x) = 232

7x - 200 + 5x = 232

12x = 232 + 200 12x = 432 x = 432/12 x = 36 Deoarece y = 40 - x y = 40 - 36 y = 4

6 0
3 years ago
Please help find the inequalities
saul85 [17]

Answer:

I and III

Step-by-step explanation:

5x - 10 \leq - 5 <=>

5x \leq 5 <=>

x \leq 1

For I:   -1 \leq 1   Correct

For II:   9 \leq 1   False

For III:   1 \leq 1   Correct

Hence, I and III is the final answer.

7 0
3 years ago
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The local recreation center charges members a registration fee and a separate monthly membership fee. The equation of the functi
katen-ka-za [31]
25 represents the monthly membership fee
6 0
3 years ago
Which elements in the following set are integers -8,3/4,-0.18,0,0.16,5,-2/7,6
aleksklad [387]

Answer:

345

Step-by-step explanation:

7 0
3 years ago
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