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Vitek1552 [10]
2 years ago
7

3+ 6 x{( 15 +9)=3-2}. Rajah got 49 while Obet got 39. Whose answer was correct? Prove your answer.

Mathematics
2 answers:
Naily [24]2 years ago
8 0

Answer:

  • 39, Obet is right

Step-by-step explanation:

  • <em>I guess the </em>=<em> should be </em>÷<em> or else it doesn't make sense.</em>

<u>Simplify in steps considering the hierarchy of operations:</u>

  • 3 + 6 × {(15 + 9) ÷ 3 - 2} =                  Parenthesis
  • 3 + 6 × {24 ÷ 3 - 2} =                         Parenthesis, division
  • 3 + 6 × {8 - 2} =                                 Parenthesis, subtraction
  • 3 + 6 × 6 =                                         Multiplication
  • 3 + 36 =                                             Addition
  • 39
ddd [48]2 years ago
7 0

Step-by-step explanation:

39, Obet is right

Step-by-step explanation:

I guess the = sh be/ or else it doesn't make sense.

Simplify in steps considering the hierarchy of operations:

• 3+6*\ (15+9)/3-2\ = Parenthesis

• 3+6*\ 24/3-2\ =

Parenthesis, division

3+6*\ 8-2\ = Parenthesis, subtraction

3 + 6 * 6 = Multiplication

• 3 + 36 = Addition

• 39

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I don’t understand how this question
Vladimir79 [104]

Answer:

<u>x = √51</u>

Step-by-step explanation:

The given figure is a <u>right triangle</u>.

<u>Using the Pythagorean Theorem to find x</u>

  • (Altitude 1)² + (Altitude 2)² = (Hypotenuse)²
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  • 49 + x² = 100
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4 0
1 year ago
2x+3y=1 and y=-2 - 9 solve using linear combination method. Please explain steps.
kaheart [24]

Answer:

x=17

Step-by-step explanation:

2x+3y=1

y=-2-9

  • In order to combine these two equations, an idea you need to keep in mind is finding a way of setting these equations as equal to each other. I saw that each equation shared a common value, y. In this case, we need to isolate y in the first equation so that both equations =y.

2x+3y=1

3y=-2x+1

\frac{3y}{3}=\frac{-2x+1}{3}

y=-\frac{2}{3}x+\frac{1}{3}

  • With this, we now know that both -2-9 and -\frac{2}{3}x+\frac{1}{3} are equal to y, so we can set them equal to each other.

y=-\frac{2}{3}x+\frac{1}{3}

y=-11

-\frac{2}{3}x+\frac{1}{3}=-11

  • Reply to this if anything I'm saying or doing is confusing in any way, or if you find a mistake. :) Solve for x.

-\frac{2}{3}x+\frac{1}{3}=-11

-\frac{2}{3}x=-11-\frac{1}{3}

-\frac{2}{3}x =-\frac{33}{3}-\frac{1}{3}

-\frac{2}{3}x =-\frac{34}{3}

-\frac{2}{3}x(-\frac{3}{2})=-\frac{34}{3}(-\frac{3}{2})

x=\frac{102}{6}=17

x=17

  • Hopefully this answer is correct AND makes sense in terms of how I achieved it. Again, reply to this with any questions or mistakes I made and I'll do my best to answer or fix them.

 

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3 years ago
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B. 7

Step-by-step explanation:

Count every number less than 70 (count the leaf plot numbers if that helps).

62,62,63,64,54,56,56 = 7 drivers that travel less than 70 mph

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