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8090 [49]
3 years ago
12

Simplify (write without the absolute value sign): 120+x, if x <- 120

Mathematics
1 answer:
Alexeev081 [22]3 years ago
8 0

Answer: - x - 120

Explanation: You want to find the opposite of (120-x) not just x, so you just put the negative symbol next to both the variables.

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Find the value of 7p – 3q when p= 8 and q = -5
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Step-by-step explanation:

7p – 3q

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7(8)-3(-5)

56+15

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The smiths have two children. The sum of their ages is 23. The produce of their ages is 132. How old are the children?
kolezko [41]

For this case we propose a system of equations:

x: Let the variable representing the age of the first child of the Smiths

y: Let the variable representing the age of the second child of the Smiths

According to the data of the statement we have to:

x + y = 23\\x * y = 132

From the first equation we have to:

x = 23-y

We substitute in the second equation:

(23-y) * y = 132\\23y-y ^ 2 = 132\\y ^ 2-23y + 132 = 0

We find the solutions by factoring:

We look for two numbers that, when multiplied, result in 132 and when added, result in 23. These numbers are 11 and 12.

Thus, we have that the factorized equation is:

(y-11) (y-12) = 0

Thus, the solutions are:y_ {1} = 11\\y_ {2} = 12

So, we can take any of the solutions:

With y = 11

Thenx = 23-11 = 12

Therefore, the ages of the children are 11 and 12 respectively.

Answer:

 The ages of the children are 11 and 12 respectively.

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3 years ago
Please please help me please please help help me thank you
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Step-by-step explanation:

c=4.49×0.86w is answer

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