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Akimi4 [234]
3 years ago
10

How many solutions does the following equation have 3(X + 9) = 2x + 54

Mathematics
1 answer:
kotykmax [81]3 years ago
8 0

Answer:

One solution.

Step-by-step explanation:

3(x + 9) = 2x + 54

3x + 27 = 2x + 54

3x + 27 - 2x = 2x + 54 - 2x

x + 27 = 54

x + 27 - 27 = 54 - 27

x = 27

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A dairy needs 357 gallons of milk containing 5% butterfat. How many gallons each of milk containing 7% butterfat and milk contai
IrinaVladis [17]

9514 1404 393

Answer:

  • 238 gallons 7%
  • 119 gallons 1%

Step-by-step explanation:

Let h represent the number of gallons of high butterfat content milk. Then 357-h will be the number of gallons of 1% milk. The total amount of butterfat in the mix is ...

  0.07h +0.01(357 -h) = 0.05(357)

  0.06h = 14.28 . . . . . . . . . . subtract 3.57, collect terms

  h = 238 . . . . . . . . . .  divide by 0.06

  357-h = 357 -238 = 119

238 gallons of 7% and 119 gallons of 1% are needed.

6 0
3 years ago
“76 is 60% of what?” Help!
kipiarov [429]

126.67

      Hope this helps!

5 0
3 years ago
What number us 17 less than the product of 7 and 11
m_a_m_a [10]

77 is the product of 7 and 11 (Multiply them)

77 - 17 = 60

Hope this helped!

3 0
3 years ago
One number is 3 less than 5 times another number. The sum of the numbers is 27. What are the two numbers? Enter your answers in
kaheart [24]

x ,y are the numbers

x = 5y-3

x+y = 27

substitute first equation into the second

(5y-3) +y =27

combine like terms

6y-3=27

add 3 to each side

6y=30

divide by 6

y=5

x = 5y-3

x=5*5-3

x=22

the two numbers are 22 and 5


5 0
3 years ago
HELPPPPP!!!! MEEE!!! PLEASE!!! ASAPPP!!!!
mario62 [17]
Umm, what grade are you in . i’ll see if i can help
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