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Irina18 [472]
3 years ago
14

Andre and Diego were each trying to solve 2x+6=3x−8. Describe the first step they each make to the equation. The result of Andre

's first step was -x+6=-8. The result of Diego's first step was 6=x−8.
Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0

Answer:

  • Andre subtracted 3x from both sides
  • Diego subtracted 2x from both sides

Step-by-step explanation:

<u>Andre</u>

Comparing the result of Andre's work with the original, we see that the "3x" term on the right is missing, and the x-term on the left is 3x less than it was. It is clear that Andre subtracted 3x from both sides of the equation.

__

<u>Diego</u>

Comparing the result of Diego's work with the original, we see that the "2x" term on the left is missing, and the x-term on the right is 2x less than it was. It is clear that Diego subtracted 2x from both sides of the equation.

_____

<em>Comment on their work</em>

IMO, Diego has the right idea, as his result leaves the x-term with a positive coefficient. He can add 8 and he's finished, having found that x=14.

Andre can subtract 6 to isolate the variable term, and that will give him -x=-14. This requires another step to get to x=14. Sometimes minus signs get lost, so this would not be my preferred sequence of steps.

As a rule, I like to add the opposite of the variable term with the least (most negative) coefficient. This results in the variable having a positive coefficient, making errors easier to avoid.

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Zielflug [23.3K]

The seahorse make a lot of babies because the male carries the babies while the female makes more eggs.

<h3>What is mating?</h3>

Mating is the process in which opposite or hermaphroditic organisms pair for reproduction.

During mating between the male and female seahorse mates, the female seahorse puts her eggs in the male pouch and the male fertilises the egg in his pouch. The eggs develop into baby seahorse in the father pouch.

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4 0
2 years ago
What is RS? Round to the nearest tenth. I’m really struggling with this one.
tatiyna

Answer:

The RS is 6.48 in 739, 1500, 65

Hope this helps!

5 0
3 years ago
PLEASE HELP ME PLEASE ! <br> Not hard !
NeTakaya

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2.98

Step-by-step explanation:

6 0
3 years ago
Which equation is equivalent to StartRoot x EndRoot + 11 = 15?
Lerok [7]

The equivalent expression of \sqrt x + 11 = 15 is \sqrt x = 15 - 11

<h3>How to determine the equivalent expression?</h3>

The complete question is in the attached image

The expression is given as:

\sqrt x + 11 = 15

Subtract 11 from both sides of the equation

\sqrt x + 11 - 11= 15 - 11

This gives

\sqrt x = 15 - 11

Hence, the equivalent expression of \sqrt x + 11 = 15 is \sqrt x = 15 - 11

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5 0
2 years ago
The shape of the top surface of a table is a trapezium. Find its area
qaws [65]

Answer:

0.88m²

Step-by-step explanation:

Area of a trapezium = 1/2(a+b)h

a and b are the parallel sides

h is the height

Given

a = 1m

b = 1.2m

h = 0.8m

Substitute

Area of the trapezium = 1/2(1+1.2)(0.8)

Area of the trapezium = 1/2(2.2)(0.8)

Area of the trapezium = 1.1 * 0.8

Area of the trapezium = 0.88m²

7 0
3 years ago
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