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Lyrx [107]
3 years ago
10

I need help with this question please help me...- 21+3x = -3​

Mathematics
2 answers:
scoray [572]3 years ago
6 0

Answer:

Step-by-step explanation:

Step one add 21 to each sides of the equal sign the you get

3x = 18

Divide by 3 on each side of the equal sign then your answer is

6

X = 6

Rom4ik [11]3 years ago
5 0

Answer:

  x=6

Step-by-step explanation:

-21+3x=-3

+21      +21

   3x=18

   /3   /3

   x = 6

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What would you get for 12y=2 1/4 the answer
myrzilka [38]

$y=\frac{3}{16} $

Solution:

Given expression:

$12y=2\frac{1}{4} $

To solve this and find the value of y.

Let us first convert the mixed fraction into improper fraction.

$2\frac{1}{4} =\frac{(2\times4)+1}{4}

     $ =\frac{8+1}{4}

$2\frac{1}{4}  =\frac{9}{4}

Now, substitute this in the given expression.

$12y=\frac{9}{4} $

Divide by 12 on both sides of the expression.

$\frac{12}{12}y=\frac{9}{4\times 12} $

$y=\frac{9}{48} $

To reduce this expression, divide by 3 on both numerator and denominator.

$y=\frac{9\div 3}{48\div 3} $

$y=\frac{3}{16} $

Hence the answer is y=\frac{3}{16}.

5 0
3 years ago
PLEASE HELP: Picture is below
vodka [1.7K]

Answer:

  • f(g(x)) =   14x³ - 3

Step-by-step explanation:

<u>Given:</u>

  • f(x) = 7x² - 3
  • g(x) = \sqrt{2x^3}

<u>To find f(g(x)), substitute x in f(x) with the value of g(x):</u>

  • f(g(x)) = 7(\sqrt{2x^3})^2 - 3  = 7(2x³) - 3 = 14x³ - 3

This represents the amount of money she earns every hour, where x is the number of hours.

6 0
3 years ago
Jody paid $48.23 for a jacket. The price included a 6% sales tax. What was the original price of the jacket.
Lana71 [14]

Your teacher might have rounded in order to get her answer.

5 0
4 years ago
Need help ASAP it due today
Harlamova29_29 [7]

Answer:

3/4

Step-by-step explanation:

3 0
3 years ago
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Which could be the area of a face of the rectangular prism? [Not drawn to scale] 5 m2 6 m2 7 m2 9 m2
masya89 [10]

Answer:

I am aware of this question because i just did it, even though there is no picture.

Step-by-step explanation:

First you would find the area of each side.

After you do that only one answer correlates with a side of the rectangular prism.

So the answer is 6 meters squared.

8 0
4 years ago
Read 2 more answers
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