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IrinaVladis [17]
2 years ago
13

Which equation can be used to solve a – 5 = 30?

Mathematics
1 answer:
kari74 [83]2 years ago
4 0

Answer:

last one

a = 30 + 5

a - 5 = 30

Step-by-step explanation:

here is your answer

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Choose all the numbers that are common multiples of 4 and 5.
densk [106]

Answer:

40

Step-by-step explanation:

it would be 20 too but there is no opition for this  i hope i helped

3 0
3 years ago
Read 2 more answers
Solution of the equation<br> 3x/5+1=4x/15+7
Anika [276]

Answer:

x = 18

Step-by-step explanation:

Given

\frac{3x}{5} + 1 = \frac{4x}{15} + 7 ( subtract 1 from both sides )

\frac{3x}{5} = \frac{4x}{15} + 6

Multiply through by 15 to clear the fractions

9x = 4x + 90 ( subtract 4x from both sides )

5x = 90 ( divide both sides by 5 )

x = 18

4 0
3 years ago
What value has a z-score of -0.67, if the mean is 18 and the standard deviation is 1.68?
uranmaximum [27]
The data point is 1.6 standard deviations above the mean.
Step-by-step explanation:
Z-score
It is the number of standard deviations from the mean that a data point is. It's a measure of how many standard deviations below or above the population mean a raw score is.
A Z-score is also known as a standard score and it can be placed on a normal distribution curve.
As in this case the Z-score is +1.6, so it means the data point is 1.6 standard deviations above the mean. Hope this helps I am kinda knew to this so I hope I helped you
7 0
3 years ago
During a period of 112 minutes, a music station played 40 minutes of commercials. What
Gemiola [76]

Answer:

9:5

Step-by-step explanation:

  1. 112 - 40 = 72. 112 represents the total time, but you are comparing music to commercials, so you have to subtract the commercial time from the total time.
  2. Find the GCF of 72 and 40, which is 8.
  3. Divide 72 and 40. The simplified ratio is 9:5.
5 0
2 years ago
Find the domain of the function:<br><br> V(X)= the square root of 9+X
stellarik [79]

Answer:

[-9,∞)

Step-by-step explanation:


3 0
3 years ago
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