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Evgen [1.6K]
4 years ago
12

Nine less than four times a number equals fifteen

Mathematics
2 answers:
OverLord2011 [107]4 years ago
8 0
4n-9=15. N=6 (n stands for number)
NARA [144]4 years ago
7 0
  
according to the question

4x-9 = 15
4x=24
x=6
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Please help and show work if you can I only need 10, 11 and 12​
postnew [5]

Answer:

Step-by-step explanation:

10). AD = BC [If ABCD is a parallelogram]

     3x + 1 = 6x - 4

     6x - 3x = 1 + 4

     3x = 5

     x = \frac{5}{3}

11). If ABCD is a parallelogram,

     AB = CD

     5x - 8 = 2x + 7

     5x - 2x = 7 + 8

     3x = 15

     x = 5

12). If ABCD is a parallelogram,

     AB = CD

     AB║CD and BD is a transversal intersecting these parallel lines.

     ∠ABD ≅ ∠BDC [Alternate interior angles]

     4x - 1 = x + 38

     4x - x = 38 + 1

     3x = 39

     x = 13

6 0
3 years ago
What are the factors of the expression (y-2)(x+3)?
masya89 [10]

Answer:

Something which is multiplied by something else. A factor can be a number, variable, term, or a longer expression

with this information we can conclude that the numbers  2 and 3 are factors

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
You bought 34 pound of dry ice for an experiment. When the experiment was over, you found that you had used only 13 of what you
MrRa [10]
If you only used 13% then you used 4.42 pounds of dry ice. 
3 0
4 years ago
Ron wants to buy a video game with a selling price of ?$36?, on sale for? 50% off. The sales tax in his state is 5.5 %. How much
cestrela7 [59]

Answer:

Yes, it costs $18.99.

Step-by-step explanation:

The game is originally $36 and a game 50% off is 36/2 = $18.

The sale price is $18.

The state charges 5.5% tax which means you pay 105.5% of the sale price.

1.055(18) = 18.99

The final total is 18.99 which means Ron's $19 is enough.

7 0
3 years ago
why do whole numbers raised to an exponent get greater while fractions raised to an exponent get smaller?
Scrat [10]
Because 3^2 = 9
When you do (⅓)^2 what you are really doing is
(1^2)/(3^2) = 1/9


If you have (⅔)^2 you do
(2^2)/(3^2) = 4/9

Fractions get smaller because the denominator is also being squared which makes the denominator get bigger and when the denominator is bigger, you are dividing by a larger number which gives you a smaller answer. Whereas when you raise a whole number to an exponent, only the numerator get bigger because the denominator is 1 and 1 raised to any exponent is still 1

3^2 = (3^2)/(1^2) = 9/1 = 9
6 0
4 years ago
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