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nikdorinn [45]
1 year ago
12

Kaitlyn solved the equation for x using the following calculations. Negative 5.4 + x = 12.2. Minus 5.4. x = 6.8. What error, if

any, did she make?
Mathematics
1 answer:
omeli [17]1 year ago
3 0

Step-by-step explanation:

The equation that Kaitlyn solved is as follows :

-5.4+x=12.2

The steps to solve it as follows :

Step 1. Add 5.4 to both sides,

-5.4+x+5.4=12.2+5.4

Step 2. 5.4 will cancel out as both have opposite signs

x=17.6

But Kaitlyn solved it as :

5.4.x=6.8

She has multiplied -5.4 and x which is wrong. The correct answer is 17.6.

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slavikrds [6]

Answer: 2.1 Pull out like factors :

6s - 2r  =   -2 • (r - 3s)

Equation at the end of step

 ((0-(9•(6s-4r)))+3s)--14•(r-3s)

Pulling out like terms

4.1     Pull out like factors :  6s - 4r  =   -2 • (2r - 3s)

Equation at the end of step

 ((0--18•(2r-3s))+3s)--14•(r-3s)

Final result :

 <u>50r - 93s</u>

7 0
2 years ago
Levi bought 14 chicken wings for $22.40 how much would it cost for 12 wings
777dan777 [17]

Answer:

x =19.20

Step-by-step explanation:

We can use ratios to solve

14 wings      12 wings

------------- = ---------------

22.40          x

Using cross products

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14x =268.8

Divide each side by 14

14x/14 = 268.8/14

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8 0
2 years ago
Read 2 more answers
Maggie claims that the function g(x)=x/3−4 is the inverse of the function of f(x)=3x+4 .
Pachacha [2.7K]

Answer:      it's C!

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5 0
2 years ago
7. A box contains fifteen billiards balls, numbered 1 through 15. Anna draws a ball, records the number, and then returns it to
liraira [26]

Answer:

0.0044 = 0.44%

Step-by-step explanation:

If we have 15 balls, each one with a number from 1 to 15, and no number repeats, the probability of drawing a 9 is 1/15, as there is only one ball with number 9 inside the 15 balls.

After picking the first ball, it is returned, so we still have 15 balls with 15 differents numbers.

So, the probability of the second ball being number 3 is also 1/15 (just one ball with number 3 inside 15 balls)

So, the final probability is the product of each of these probabilities:

P = (1/15) * (1/15) = 1/225 = 0.0044 = 0.44%

7 0
2 years ago
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Montano1993 [528]

Answer:

they would both be 61°

Step-by-step explanation:

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4 0
1 year ago
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