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KatRina [158]
4 years ago
14

Which expressions, when evaluated with y = –7, are positive in value?

Mathematics
1 answer:
Kruka [31]4 years ago
6 0
A) 18+(2*(-7)) = 4
B) (-3(-7))+(-17) = 4
C) (-2(-7))-23 = -9
D) -30-(4(-7)) = -2
So your answer is A and B
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Solve each system of equations without graphing: 6t-9u=10 and 2t+3u=4
stepladder [879]

Answer:

6t-9u=10

2t+3u=4

t=11/6

u=1/9

Hope This Helps!!!

6 0
3 years ago
Your parents have a credit card with a balance of $3,287.90 at an interest rate of 14.5% APR. They pay $1,200.00 each month on t
Natali5045456 [20]

Answer:

$3,364.86

Step-by-step explanation:

3287.9*(14.5%/12)=39.73

3287.9 +39.73 interest = 3,327.63 - 1,200 (payment)=2127.63

2127.63 x (14.5%/12)=25.71

2127.63 + 25.71 interest = 2153.34 - 1200 (payment)=953.34

953.34 x (14.5%/12)=11.52

953.34 + 11.52 interest = 964.86

1200 + 1200 + 964.86 = $3,364.86

4 0
3 years ago
En la feria una pera tiene un valor de b pesos y una manzana cuesta 7 pesos menos.la señora Rina compro 4 peras y una manzana. E
marin [14]

Answer:

El total que la señora Rina pagó por sus frutas, en términos de b, es:

  • <u>5b - 7</u>

Step-by-step explanation:

Para resolver este ejercicio, primero sacaremos las variable que nos brindan:

  • Costo de la pera = b
  • Costo de la manzana = b - 7 (esto se debe a que la manzana cuesta 7 pesos menos que la pera, tal como dice el enunciado).

Ahora, nos centraremos en la compra realizada por la señora Rina, donde se menciona que:

  • <em>Compra de la señora Rina = 4 peras + 1 manzana</em>

Ahora, como si esto fuera una ecuación, vamos a reemplazar las manzanas y las peras por las variables que tenemos de su costo:

  • Compra de la señora Rina = 4b + b - 7

Y procedemos a operar:

  • <u>Compra de la señora Rina = 5b - 7</u> (sumando 4b + b)

Por lo tanto, <u><em>la compra de la señora Rina, en términos de b, le ha costado 5b - 7</em></u>.

6 0
3 years ago
Just one math question i'll mark brainliest :)
drek231 [11]

Answer:

14

Step-by-step explanation:

9 + 4 = 13 and 1/2 + 1/2 = 2/2 = 1 and 13 + 1 = 14

4 0
3 years ago
A rectangle has a length of 15 cm and a width of 11 cm. What is its perimeter?
Marat540 [252]

Answer:

52 cm

Step-by-step explanation:

perimeter = 2(length) + 2(width) for a rectangle.

2(15)+2(11)=52 cm

4 0
2 years ago
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