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stiks02 [169]
3 years ago
12

Solve 2x + 5 = 12 please help !

Mathematics
2 answers:
Lady_Fox [76]3 years ago
8 0
The correct answer is x=3.5
Volgvan3 years ago
5 0

Answer: x = 3.5

Step-by-step explanation:

We can start by subtracting 5 from both sides:

2x - 5 = 12 - 5      Which will come out to: 2x = 7

Then we divide both sides by 2 so that we can isolate the variable:

2x/2 = 7/2       Which will come out to: x = 3.5

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A 3-pack of beaded necklaces costs $4.47. What is the unit price?
inysia [295]

Answer:

1.49 per necklace

Step-by-step explanation:

there are 3 necklaces sold for 4.47. if we divide the three necklaces by the overall price we get the price per necklace. 4.47 divided by 3 = 1.49

7 0
3 years ago
Read 2 more answers
X3 + 2x2 - 48x<br> Help please
lutik1710 [3]

Answer:

0?

Step-by-step explanation:

4 0
3 years ago
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8−i
GalinKa [24]

Hi Veracity,

Answer:

(2 + i) = 2

Step-by-step explanation:

Multiply the denominator and numerator by the conjugate,

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Hope This Helps :)

3 0
3 years ago
Someone plz help me
marusya05 [52]
This is a parabola which looks like an inverted U. Its will have a maximum value  when t = 7  as we see from  the vertex form below:-

- t^2 + 14t - 40 
= - ( t - 7)^2 + 49 - 40
= -(t - 7)^2 + 9

There is an axis of symmetry at  x = 7.

so a is true  since 7 is the maximum value of the function and  its less at t = 6.
c is also true   because  of the symmetry about t = 7

8 0
3 years ago
The appropriate translation of the phrase 11 more than 20 percent of a number is:
Arturiano [62]

Answer: True

Step-by-step explanation: 20% can also be written as 0.2 and if you know the number then you would multiply it by 0.2, then if you needed to add 11 that is exactly how you would write that equation

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