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blsea [12.9K]
2 years ago
14

Use the correct order of operations to evaluate the following expression:(5+4).5+3.3

Mathematics
1 answer:
horsena [70]2 years ago
7 0

Answer:

For any mathematical expression follow the BODMAS rule which states that we should calculate the Brackets first (2 + 4 = 6), then the Orders (52 = 25), then any Division or Multiplication (3 x 6 (the answer to the brackets) = 18), and finally any Addition or Subtraction (18 + 25 = 43).

Step-by-step explanation:

(5+4) × 5 + 3.3

Bracket open = 9

Since there is no division, so multiply 9×5, which is 45

Then add, 45+3.3

Answer= 48.3

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Solve using elimination 5x+7y=9 <br> 2x-3y=-37
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Answer:

x = -8

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Step-by-step explanation:

5x + 7y = 9

2x - 3y = -37

1.) First, multiply each side to match either y-values or x-values. (In this example, we'll use match x-values)

10x + 14y = 18 (multiplied by 2)

10x - 15y = -185 (multiplied by 5)

2.) Then, subtract the entirety of one equation to isolate the y-value.

10x + 14y = 18

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3.) Add and subtract values and divide to find y.

29y = 203

y = 7

4.) Plug-in y to solve for x into one equation, or repeat steps 1-3.

15x + 21y = 27

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Which expression is equivalent to (x'2-2)'5​
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2 years ago
Express the product in simplest form.
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\frac{8}{2x+8} *  \frac{ x^{2}-16 }{4}

1. Cross cancel
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2. Multiply numerators
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3. Multiply denominators
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\frac{4 x^{2} -64}{2x+8}

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