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Talja [164]
3 years ago
12

140% of what number is 48

Mathematics
2 answers:
MrRissso [65]3 years ago
8 0
1.4x = 48
Solve for x
x = 48/1.4

x = <span>34.2857</span>
Montano1993 [528]3 years ago
3 0
Percent means parts out of 100
140%=140/100=1.4
'of' means multiply
'is' means =
140% of what is 48 means
1.4 times what=48
divide both sides by 1.4
what=34.285714285714285714285714...

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las edades de maría y susana suman 56 años si la edad de maría es los 3/5 de la edad de susana ¿ que edad tiene maría?
Murljashka [212]
Susana=s
maria=m

m= 3s/5 

s+m=56
s+(3s/5)=56
(5s+3s)/5=56
8s=56*5
8s=280
s=280/8
s=35

35 --->5/5
x  ---> 3/5

x= (3/5)*35 / (5/5)
x=21 
edad de maria= 21 años
4 0
3 years ago
What is the additive inverse of 2/3
MissTica

Answer:

Your answer would be -2/3.

Step-by-step explanation:


7 0
3 years ago
I am thinking of a number.
mash [69]

Answer:

21

Step-by-step explanation:

Let x be that number.

12x-216=2x-6

12x-2x=-6+216

10x=210

10x/10=210/10

x=21

21 is the number.

8 0
3 years ago
Read 2 more answers
20-13-8=15 simplifying expressions
Scilla [17]

Hey there!

20 - 13 - 8 = 15 \\ \\ \\ 20 -13 =07 \\ \\ \\ 07 - 8 = -1 \\ \\ \\ -1  \neq  15

The actual answer for the problem would be -1

The answer is not 15

So, this make this statement false

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

7 0
3 years ago
Read 2 more answers
A gym charges a $615 yearly fee for membership plus $50 for each hour of personal training. What is the average total cost per h
olga2289 [7]

Answer:

The average total cost per hour of training is $70.5

Step-by-step explanation:

The form of the linear function is f(x) = m x + b, where

  • m is the average rate
  • b is the initial value

∵ The gym charges a $615 yearly fee for membership plus

   $50 for each hour of personal training

- That means the initial amount is 615 and the average rate is 50

∴ m = 50 dollars per hour

∴ b = 615 ⇒ fixed fee

- Substitute m and b in the form of the linear function

∴ c(x) = 50 x + 615, where c(x) is the cost per year for x

   training hours

∵ A member works with a personal trainer for 30 hours in a year

- That means x = 30

∴ x = 30

- Find the total cost of this year by substituting x by 30

∴ c(30) = 50(30) + 615

∴ c(30) = 1500 + 615

∴ c(30) = 2115

∴ The total cost of this year is $2115

To find the average cost per hour divide the total cost by the number of the training hours

∵ Average cost per hour = 2115 ÷ 30

∴ The average cost per hour = 70.5 dollars

∴ The average total cost per hour of training is $70.5

8 0
3 years ago
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