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n200080 [17]
3 years ago
8

Write an INEQUALITY that represents the sentence

Mathematics
1 answer:
kykrilka [37]3 years ago
8 0

Answer:

Step-by-step explanation:

Let n represent the unknown number.

1) The sum of a number and 5 is less than 7 becomes n + 5 < 7

2) The product of a number and 8 is at least 25 becomes 8n ≥ 25

3) Six less than a number is greater than 54 becomes n - 6 > 54

4) the quotient of a number and 12 is no more than 6 becomes n/12 ≤ 6

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Evaluate f(−1)=−3x^3 + 2x^2
Sholpan [36]

Answer:

5

Step-by-step explanation:

f(-1)= -3(-1)³+2(-1)²

= -3(-1)+2(1)

= 3+2

=5

5 0
3 years ago
I need some heeelp please
VARVARA [1.3K]

Answer:

Min:  3

Q1:  7

Med:  10

Q3:  13

Max:  16

Step-by-step explanation:

6 0
3 years ago
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Si 15 obreros construyen un muro en 45 minutos, ¿en cuánto tiempo lo construirán 3 obreros con similar habilidad?
Alexxx [7]

Answer:

3 obreros tardaran 225 minutos en completar el trabajo.

Step-by-step explanation:

Sea R la velocidad con la que un obrero puede construir 1 muro.

Sabemos que 15 obreros construyen un muro en 45 minutos, entonces:

(15*R)*45min = 1 muro

Con esta ecuación podemos encontrar el valor R

R = (1 muro)/(15*45min)  

Ahora queremos saber cuando tiempo tardan 3 obreros en construir un muro, entonces tenemos que resolver:

(3*R)*T = 1 muro

Reemplazando el valor de R obtenemos:

(3*(1 muro)/(15*45min))*T = 1 muro

T = (1 muro)*(15*45 min)/(3*1 muro)

T = 5*45min = 225 min

3 obreros tardaran 225 minutos en completar el trabajo.

7 0
3 years ago
Please help quickly!
Stells [14]
AB is reflected across the line Y=x
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How many hours will Regina and Joseph have to work in order to make the same amount of money in one week?
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