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kogti [31]
2 years ago
6

Neelam is pouring sand into a clear box to make sand art. The box is a right rectangular prism, and the base of the box is 7 in.

by 2 1/2in. She pours in red sand until the volume of the sand is 26 1/4 and 3 cubic inches. Then she pours in blue sand. Now the volume of the sand is 43 3/4 and 3 cubic inches. How much does the level of the sand rise when Neelam adds the blue sand? I will give you brainliest if its right also... NO DANG BOTS OR LINKS
Mathematics
1 answer:
Marrrta [24]2 years ago
7 0

Answer:20 2/4

Step-by-step explanation:

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Solve systems of equations for y and x: <br><br> −5y + 8x = −18<br><br> 5y + 2x = 58​
Natali5045456 [20]

Answer:

(4, 10)

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<u> </u>

Equality Properties<u> </u>

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)
  • Coefficients
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

-5y + 8x = -18

5y + 2x = 58

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

<em>Elimination</em>

  1. Combine 2 equations:                                                                                      10x = 40
  2. [Division Property of Equality] Divide 10 on both sides:                                x = 4

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Substitute in <em>x</em> [Original equation]:                                                                  -5y + 8(4) = -18
  2. Multiply:                                                                                                             -5y + 32 = -18
  3. [Subtraction Property of Equality] Subtract 32 on both sides:                      -5y = -50
  4. [Division Property of Equality] Divide -5 on both sides:                                y = 10
7 0
3 years ago
Please help . I’ll mark you as brainliest if correct !!!!
pav-90 [236]
31-21=15
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3 0
3 years ago
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Which of the values in the set {2, 3, 4, 5} is a solution to the equation 2x + 4 = 10?
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The answer is 3 because 2(3) + 4 = 10; 6 + 4 = 10
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