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saw5 [17]
3 years ago
11

18 is the geometric mean between 4 and 9. true or false

Mathematics
1 answer:
tia_tia [17]3 years ago
8 0

4/x = x/9

36 = x²

6 = x

The geometric mean between 4 and 9 is 6

Answer: False

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Luigi is an urban planner. As an independent contractor, he charges a $140 fee plus $25 per hour for
Anuta_ua [19.1K]

Answer:

Function: y=140+25x

Amount earned for 10 hours of work: \$390

Step-by-step explanation:

Let be "x"  the number of hours worked on a project and "y" the total amount Luigi charges for a project.

Based on the data given in the exercise, you can identify that:

  • $140 is a fixed amount.
  • For each hour worked on the project, Luigi charges $25. This can be expressed as: 25x

Then, the total amount he charges for a project is the sum of $140 and 25x. This can be represented with the following function:

y=140+25x

To calculate the amount of money earned for 10 hours of work, you must substitute x=10 into the function and evaluate. Then:

y=140+25(10)\\\\y=390

7 0
3 years ago
Equations
sergij07 [2.7K]

Answer:

2x+12=24

first you subtract 12 from both sides

2x+12=24

-12. -12

The 12-12 should cancel itself, the rest of the equation you bring down to get

2x=12 (because 24-12=12)


Now you have 2x=12.
you then divide 2x by both sides.

2x=12

/2x=/2x

The 2x/2x cancels itself out so you then solve for 12/2x.

For this you just divide 12/2 which is 6!

x= 6 is your final answer.
to check this equation you can plug your number back into x to see if it is true! 2(6)+12=24.
6 times 2 is 12 and 12+12 is 24 so your answer (6) is true!


hope this helps! :D

4 0
2 years ago
Read 2 more answers
If you going to answer one question say it in the comments it's gonna be the waste of time bc the answer is going to be deleted
oksano4ka [1.4K]
I am going to do number 2 so when you subtract decimals you have to add two zeros like this 10.00 or 0.25 so now when you subtract you get $9.75
6 0
3 years ago
1 . a person who weighs 100 pounds on earth weighs 16.6 ib on the moon. part
timurjin [86]
M = E/6

a) 185/6 lb = 30.8333... lb
b) 300 lb
3 0
3 years ago
A news paper article reports the results of an election between candidates the article says that smith received 60% of the votes
Leokris [45]
If you want some help here, I can tell you!

60% is 60%, since the best way to find out is by converting the two numbers into percents.

You need to find out a decimal first for the second number in order to convert it to a percent. To find a decimal out of a fraction, you put the numerator in the house (I forgot what it was called) and then you put the denominator out. You divide, and you find that 1/3 is actually a repeating decimal, 0.33333333 and so on. You round to 0.34, and that's 34% since 0.34 is 34 out of 100, basically. 34% plus 60% is NOT 100%, and 100% is a whole, so that's why it isn't accurate.
4 0
3 years ago
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