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Tasya [4]
3 years ago
10

NEED ANSWER ASAP Explain why the equation 5丨x丨-7=7 has only one solution?

Mathematics
1 answer:
Anni [7]3 years ago
6 0
The x is an absolute value so it can only be a positive number
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Simplify the expression the best you can:<br> (9x−4)−(2x−7) =
Kobotan [32]

Answer:

7x+3

Step-by-step explanation:

To simpfly, it would help by simply ignoring the variable (x) and just looking at the number before it, solving it like a regular math problem, from left to right.

9(x) - 2(x) = 7(x)

(-4)-(-7) = 3 --> since there's a minus sign in the middle subtracting the two numbers and one on the -7, the -7 becomes a positive 7. A negative times a negative is always positive so, it would technically be -4+7=3.

Put both of these two numbers together and you get your answer,

7x+3.

If you're having trouble with the part I explained the image might help. Read it from left to right. A negative # + a negative # = positive #, as seen by the first row.

6 0
3 years ago
What times 2/3 equals negative 2
jonny [76]

Answer:

-3

Step-by-step explanation:

2/3 = 0.66

0.66 x -3 = 1.98

If you're allowed to round up, the answer is -3.

5 0
3 years ago
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Let p: A number is greater than 25 Let q: A number is less than 35 If p ^ q is true, then what could the number be? Select two o
luda_lava [24]

Answer:

28,32

Step-by-step explanation:

8 0
3 years ago
Qual é a frequência de cada gênero de leitura citados?​
Karo-lina-s [1.5K]

Answer:

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Sarafina is making monthly payments into an annuity. She wants to have $800 in fund to buy a new convection range in three month
victus00 [196]

Answer:

  $265.07

Step-by-step explanation:

The formula for the future value of an annuity is applicable.

  A = P((1+r)^n-1)/r . . . . where r is the monthly interest rate and n is the number of months. P is the monthly payment, and A is the amount of the future value.

  800 = P(1.006^3 -1)/(.006) = 3.018036P

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Sarafina's monthly payments need to be $265.07.

_____

This is about $1.60 less than the 266.67 she would deposit if she simply divided the desired balance by the number of months.

Because this number is rounded down, Sarafina will have a balance after 3 months of $799.99.

6 0
4 years ago
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