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BECE Mathematics 2015 Paper
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© africaexams.com
Question : 15
Total: 40
What is the value of x if
10
x
=
1000
?
1
2
3
4
Validate
Solution:
Express the 1000 in base 10 to a power so that you can compare the power with
x
1000
=
10
×
10
×
10
=
10
3
10
x
=
10
3
Since the bases are the same, the powers are also the same.
x
=
3
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