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AleksAgata [21]
3 years ago
12

Twice a number, decreased by 9 is 12

Mathematics
2 answers:
DiKsa [7]3 years ago
8 0

Answer:

10.5

Step-by-step explanation:

2x-9=12

2x=12+9

2x=21

x=21/2

x=10.5

Serhud [2]3 years ago
7 0

Answer:

10.5

Step-by-step explanation:

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In the parking lot for 8 cars there are 7 trucks. What is the ratio of cars and trucks
horrorfan [7]

Answer:

8:7 or 8/7

Step-by-step explanation:

you put the object before to as the numerator and the one after to as the denominator or to the right of the :

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3 years ago
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PLEASE HELP? I need help ASAP heh.
spayn [35]

Answer:

5/12

Step-by-step explanation:

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1) given

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3) reflexive

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3 0
1 year ago
Write an EQUATION for the nth term of each arithmetic sequence<br><br> -1,-0.5,0,0.5,...
kaheart [24]
Ninth term is 2.5

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-1,-0.5,0,0.5,1,1.5,2,2.5
8 0
3 years ago
Help me with my math ASAP!!!!
almond37 [142]

Answer:

f = 78

g = 3.5

Step-by-step explanation:

First we need to find f.

We can use the equation 72 + (f + 30) = 180 to solve for f.

We can then change that equation to 72 + f + 30 = 180, since the Commutative Property of Addition says that you can have any addition in any order.

Now, we can solve the equation.

102 + f = 180\\(102 - 102) + f = 180 - 102\\f = 78

Now that we solved f, we can now solve for g.

Since 25 equals 8g -3, we can solve the equation 8g - 3 = 25.

Here is how you solve it:

8g - 3 = 25\\8g + (-3 + 3) = 25 + 3\\8g = 28\\g = \frac{28}{8}

Since \frac{28}{8} equals 3.5, which is the simplest form, that is the answer.

Hope this helps, and please mark me brainliest! :)

3 0
3 years ago
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