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oksano4ka [1.4K]
3 years ago
14

The janitor at a school discovered a leak in a pipe. The janitor found out that it was leaking at a rate of 7 oz per hour. How f

ast was the pipe leaking in gallons per day?
Mathematics
1 answer:
nordsb [41]3 years ago
4 0

Step-by-step explanation:

There are 24 hours in a day and 7 oz leaked every hour so 7n= oz leaked per day.

n= # of hours (24)

7 (24)= 168oz per day

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Simplify: 5(x-12x^2)+3(4x+7x^2)
VladimirAG [237]

Answer:

-39x^2 + 17x

Step-by-step explanation:

= 5x - 60x^2 + 3 (4x+7x^2)

= 5x - 60x^2 + 12x + 21x^2

= -39x^2 + 17x

7 0
3 years ago
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Three relatives will share an inheritance of 196,800 in the ratio of 3 to 7 to 2. How many dollars of the inheritance will each
navik [9.2K]

Answer:

49200

114800

32800

Step-by-step explanation:

196800/12=ans

ans * 3

ans * 7

ans * 2

6 0
3 years ago
Need help with this math​
Ksenya-84 [330]

Answer:

About 22.7 millions

Step-by-step explanation:

Latin America 58%

App. 39.1 million = 39,100,000

People were born in Latin America:

0.58 x 39100000 = 22,678,000

Round to the nearest tenth million = 22.7 millions

7 0
3 years ago
If f(x) = -2x^2 + x–5, what is f(3)?
yan [13]

Answer:

-20

Step-by-step explanation:

Replace X by 3

f(3) = -2(3)^2+ (3)-5 = -20

7 0
3 years ago
5x + 3 - 2x = 12 + 7x - 2 solution ??? SOMEONE HELPPP PLEASE !!
tensa zangetsu [6.8K]

Answer:

x = -7/4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

5x + 3 - 2x = 12 + 7x - 2

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Combine like terms:                                                                                        3x + 3 = 7x + 10
  2. [SPE] Subtract 3x on both sides:                                                                    3 = 4x + 10
  3. [SPE] Subtract 10 on both sides:                                                                      -7 = 4x
  4. [DPE] Divide 4 on both sides:                                                                         -7/4 = x
  5. Rewrite:                                                                                                           x = -7/4

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                     5(-7/4) + 3 - 2(-7/4) = 12 + 7(-7/4) - 2
  2. Multiply:                                -35/4 + 3 + 7/2 = 12 - 49/4 - 2
  3. Add:                                      -23/4 + 7/2 = 12 - 49/4 - 2
  4. Add:                                      -9/4 = 12 - 49/4 - 2
  5. Subtract:                               -9/4 = -1/4 - 2
  6. Subtract:                               -9/4 = -9/4

Here we see that -9/4 does indeed equal -9/4.

∴ x = -7/4 is the solution to the equation.

8 0
2 years ago
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