Answer:
the answer is 396 beacsue i followed yiur instucton on the note answer.
Step-by-step explanation:
Just simply use the calculation of a trapazium.
[ (6+7) + 21 ][6]
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2
that's the formula of a trapazium. add the top length and bottom length, multiply it by the height and divide all of them by 2.
now the answer should be A, 102.
First we convert percentage to a decimal:

Then we multiply the decimal and a number:

Answer:
There were 78 visitors from China.
Answer:
- 2/5x=7/20x+1/4
- -3/4=-1/20x-1/2
- -3/4+1/20x=-1/2
Step-by-step explanation:
If you add 3/4 to both sides of the equation, you get ...
... 2/5x = 7/20x + 1/4 . . . . first choice
If you subtract 2/5x from both sides of the equation, you get ...
... -3/4 = -1/20x -1/2 . . . . third choice
If you subtract 7/20x from both sides of the equation, you get ...
... -3/4 +1/20x = -1/2 . . . . last choice
Choices 2 and 4 are erroneous versions of choices 1 and 3, so do not apply.
Answer:
I think you are happy with answer