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evablogger [386]
2 years ago
5

What is the effect of multiplying both sides of an inequality by a negative number? Explain and give an example.

Mathematics
1 answer:
tester [92]2 years ago
5 0

Answer: You would swap the ineqaulity

Step-by-step explanation:

Multiplying or dividing both sides by a negative number reverses the inequality. This means < changes to >, and vice versa. For example, given that 5 < 8 we can multiply both sides by 6 to obtain 30 < 48 which is still true.

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3 years ago
Martha compra 2 kilos de tomate y 1 kilo de cebolla pagando S/ 8,40. Si la siguiente semana compra 1 kilo de tomate y 2 kilos de
Rashid [163]

Responder:

2,40

Explicación paso a paso:

Dado que:

Dejar :

Tomate = t

Cebolla = n

(2 kilo de t) + (1 kilo de n) = 8.40

(1 kilo de t) + (2 kilo de n) = 7.80

2t + n = 8,40 - - (1)

t + 2n = 7,80 - - (2)

De (2);

t = 7,80 - 2n

Ponga t = 7.80 - 2n en (1)

2 (7,80 - 2n) + n = 8,40

15,6 - 4n + n = 8,40

15,6 - 3n = 8,40

-3n = 8,40 - 15,6

-3n = - 7,2

n = 2,4

t = 7,80 - 2 (2,40)

t = 7,80 - 4,80

t = 3

Por lo tanto, el costo de 1 kilo de cebolla es 2,40

8 0
2 years ago
What number multiplied by 4/7 has a product of 1​
Tanzania [10]

Answer:

7/4

Step-by-step explanation:

As multiplying 4/7 by 7/4 give 28/28 which is equivalent to 1.

8 0
2 years ago
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3. Penny's family decided to go to the Splash Park.
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Answer:

21.25

Step-by-step explanation:

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Factorise fully<br>6x - 8​
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Answer:

2(3x+ 4)

I hope it helps

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