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Anna [14]
3 years ago
8

Negative 5.4 + x = 12.2. Minus 5.4. x = 6.8. What error, if any, did she make?

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
3 0

Answer:

The answer is correct x =6.8, if she made an error, it might have been the steps she took.

Step-by-step explanation:

5.4 + x = 12.2

subtract 5.4 from both sides to put x terms on the left hand side, numerical number terms on the right hand side

5.4 - 5.4 + x = 12.2 - 5.4

x = 6.8

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3 years ago
Order Of operation.
Nikolay [14]

Answer

18(2)+12(2)-4(5)

36+24-20

60-20

40

Step-by-step explanation:

since they had two-18 yard passes and two 12 yard runs, that's the first part of the expression, and then they had four penalties that cost them 5 yards, and that was the last term. When you simplify, you end up with 40 yards gained.

In math

Passes: 18(2)

Runs: 12(2)

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equation

18(2)*12(2)-4(5)

Hope it helped

7 0
3 years ago
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An aircraft flew 5 hours with the wind. The return trip took 6 hours against the wind. If the speed of the plane in still air is
Yakvenalex [24]

Answer:

Speed of wind = 23.63 miles per hour

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Step-by-step explanation:

Given:

Time taken with wind = 5 hour

Time taken against wind = 6 hour

Assume;

Speed of wind = s

So,

Speed of Plane with wind = (260 + s) miles per hour

Speed of Plane against wind = (260 - s) miles per hour

Distance = speed x time

So,

(260 + s)5 = (260 - s)6

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Plane speed in still air = 260 miles per hour

5 0
3 years ago
What is the area of the figure?
natima [27]
The answer is 88 in sq


Explanation: you need to multiply the length a width of each shape then add them all together.
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3 years ago
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How is the number 0.000005 written in scientific notation?
nirvana33 [79]

Answer:      The answer is A. 5.0 x 10-5

i hope it helps. Have a nice day                                                                                                                  

Step-by-step explanation:

the decimal number 0.00005 written in scientific notation is 5 × 10-5

4 0
2 years ago
Read 2 more answers
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