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Finger [1]
3 years ago
7

Five times the sum of a number and 3 is the same as 3 times the difference of twice the number and 1.

Mathematics
1 answer:
allochka39001 [22]3 years ago
6 0

Answer:

12

Step-by-step explanation:

5(x+3) = 3(2x-1)

5x+15 = 6x-3

15-3 = 6x-5x

12 = x

x = 12

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Which expression means 7 more than a number?
olga2289 [7]
Seven more than a number would be B. d + 7

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Hope this helps :)
4 0
3 years ago
The average score of all golfers for a particular course has a mean of 61 and a standard deviation of 3.5 . Suppose 49 golfers p
Nadya [2.5K]

Answer:

The probability that the average score of the 49 golfers exceeded 62 is 0.3897

Step-by-step explanation:

The average score of all golfers for a particular course has a mean of 61 and a standard deviation of 3.5

\mu = 61

\sigma = 3.5

We are supposed to find he probability that the average score of the 49 golfers exceeded 62.

Formula : Z=\frac{x-\mu}{\sigma}

Z=\frac{62-61}{3.5}

Z=0.285

Refer the z table for p value

p value = 0.6103

P(x>62)=1-P(x<62)=1-0.6103=0.3897

Hence the probability that the average score of the 49 golfers exceeded 62 is 0.3897

7 0
4 years ago
7.93 repeating as a mixed number
zvonat [6]

Answer:hello

Step-by-step explanation:

5 0
3 years ago
Johan can drive 270 miles on 9 gallons of gas. What is his average mileage?
VladimirAG [237]

Hey there!

The correct answer is 30 miles per gallon.

If he can drive 270 miles on 9 gallons, we want to find the unit rate, or miles per gallon. We can do this by dividing 270 by 9. To make it easier, we will take off the zero, and do 27/9, which is 3. Now we add the 0 back on, which gives us 30. Therefore, his average mileage is 30 miles per gallon.

Have a terrificly amazing day! :D

4 0
3 years ago
Read 2 more answers
Write -9.54 as a fraction in simplest form
sammy [17]

Answer:

-9 \frac{27}{50}

Step-by-step explanation:

6 0
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