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vichka [17]
2 years ago
13

The mean of 4 numbers is 32. If three of the numbers are 15, 21, and 75, what is the value of the fourth number?

Mathematics
2 answers:
labwork [276]2 years ago
7 0
The next number is going to be 17 Explanation
IgorLugansk [536]2 years ago
4 0
If the mean is 32 and there is 4 numbers
then the numbers add to 32x4 which is 128
128-15-21-75=17
fourth number is 17
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Factor the expression 54x+8154x+81 using the GCF.<br> 54x+81=54x+81=
nadya68 [22]
We know that GCF stands for Greatest Common Factor and hence we need to apply this in solving the given problem. The solution is shown below:
54x+8154x+81
Combine same terms, we have:
8208X+81
Factoring with the greatest common factor which is 27
304x+3
The answer for the factored expression is 304X + 3.

6 0
3 years ago
A flower store sells carnations for $18.50 per dozen. The sales tax is 6%. Part A: How much is the sales tax on a dozen carnatio
myrzilka [38]
Part A.

*To find the sales tax (6%) amount: $18.50 x .06 = $1.11 is the sales tax on a dozen carnations

Part B. 

*To find the total cost of a dozen carnations plus the sales tax: $18.50 + $1.11 = $19.61 this is the total cost
8 0
3 years ago
The number of laps Katie ran was 2:3.If Louis ran 4 miles, how far did katie run?
agasfer [191]

Answer ran 2 3/4 miles in 1/3 of an hour

2 3/4 miles =11/4 miles in 1/3 of hour

11/4 miles divided by 1/3 hr

11/4 ÷ 1/3

11/4 * 3/1 =33/4 =8 1/4 miles in 1 hr

5 0
3 years ago
13(6x – 5) – x = 13 – 2(x + 1)
Murrr4er [49]

Answer:

x = 76/79

Hope this helped

7 0
3 years ago
Read 2 more answers
Mother is m years old, and she is four times as old as her daughter. How much older is the mother than her daughter?
yuradex [85]

The mother is older than her daughter by \frac{3}{4}m years

Step-by-step explanation:

Mother is m years old, and she is four times as old as her daughter.

we need to find how much older the mother is than her daughter

  • Put the age of mother equal 4 times the age of daughter
  • Find the age of daughter
  • Subtract the age of daughter from the age of mother to find how much older the mother than her daughter

∵ The mother's age = m

∵ Her age is four times as old as her daughter

∴ m = 4 × daughter's age

- Divide both sides by 4

∴ \frac{1}{4}m = daughter's age

- Subtract the daughter's age from her mother's age

∵ The difference of their ages = m - \frac{1}{4}m

- Change 1 m to a fraction of denominator 4, then 1 m = \frac{4}{4}m

∴ The difference between their ages = \frac{4}{4}m - \frac{1}{4}m = \frac{3}{4}m

∴ The mother is older than her daughter by \frac{3}{4}m years

The mother is older than her daughter by \frac{3}{4}m years

Learn more:

You can learn more about the fractions in brainly.com/question/1648978

#LearnwithBrainly

5 0
3 years ago
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