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Sonja [21]
3 years ago
6

Please help with answer!

Mathematics
1 answer:
Ghella [55]3 years ago
8 0

Answer:

0.12 x (x + 3000) = 4200

equation for her salary last year : last year's salary = (4200 / 0.12) - 3000

$32,000

Step-by-step explanation:

Let x = last year's salary

this year's salary = 3000 + x

this equation can be used to determine how much she saved this year = 0.12 x (x + 3000) = 4200

to find last year's salary, make x the subject of the formula

4200 / 0.12 - 3000 = x

x = $32,000

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PLEASE HELP IMMEDIATELY
MissTica

Answer:

<h2>x =  -  \frac{19}{4}</h2>

Option B is the correct option.

Step-by-step explanation:

-  \frac{1}{2}  + x =  -  \frac{21}{4}

Move constant to R.H.S and change its sign:

x =  -  \frac{21}{4}  +  \frac{1}{2}

Take the L.C.M

x =  \frac{ - 21 + 1  \times 2}{4}

x =  \frac{ - 21 + 2}{4}

Calculate

x =  -  \frac{19}{4}

Hope this helps...

Good luck on your assignment..

7 0
3 years ago
Read 2 more answers
Show answer in lowest terms. 3 1 /4 - 1 3/16=
SpyIntel [72]
3 - 1 = 2
1/4 - 3/16 = 4/16 - 3/16 = 1/16

answer is : 2 1/16 (in mixed number) or 33/16 (in improper fraction)
4 0
3 years ago
If f(x) = 3x – 2 and g(x) = 2x + 1, find (f + g)(x). please help :C
Luba_88 [7]
(f+g)(x) = f(x) + g(x)

(f+g)(x) = 3x-2 + 2x+1

(f+g)(x) = (3x+2x) + (-2+1)

(f+g)(x) = 5x - 1
3 0
4 years ago
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9x+9y=9. Solve for Y
Alja [10]

Answer:

y = 1 - x

Step-by-step explanation:

9x + 9y = 9 ( divide through by 9 )

x + y = 1 ( subtract x from both sides )

y = 1 - x

5 0
2 years ago
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grigory [225]

Answer:

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Step-by-step explanation:

Sum of a number can be written as x or in this case as b because it is an unknown number.

b is multipled by 8 so 8b

"and 27" indicates an addition so therefore, 8b + 27

"at most -29" This is a little bit tricky but ultimately it means 8b + 27 cannot be more than -29. Therefore, it must be lesser than.

However there is a line underneath that lesser than sign meaning lesser than or equal to. I believe that "at most" indicates equal to.

Other than the lesser than or equal to sign I'm unsure about, this inequality should be correct.

6 0
3 years ago
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