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Hunter-Best [27]
3 years ago
11

0.3% of what number is $0.66?

Mathematics
2 answers:
UNO [17]3 years ago
8 0
$0.66 / 0.3% = 2.2
Check:
2.2 * 0.3 = 0.66

Hope this helps!
julia-pushkina [17]3 years ago
8 0
Hi there! The answer is $220

If 0.3% of a certain number equals $0.66,
then 0.1% of that number equals 0.66 / 3 = $ 0.22.

If we want to know the original number we must multiply by 1000 (since 0.1% * 1000 = 100%). We get the following:
0.22 * 1000 = $220

Therefore, 0.3% of $220 is $0.66
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David found and factored out the GCF of the polynomial 80b4 – 32b2c3 + 48b4c. His work is below. GFC of 80, 32, and 48: 16 GCF o
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Answer: The correct statements are

The GCF of the coefficients is correct.

The variable c is not common to all terms, so a power of c should not have been factored out.

David applied the distributive property.

Step-by-step explanation:

GCF = Greatest common factor

1) GCF of coefficients : (80,32,48)

80 = 2 × 2 × 2 × 2 × 5

32 = 2 × 2 × 2 × 2 × 2

48 = 2 × 2 × 2 × 2 × 3

GCF of coefficients : (80,32,48) is 16.

2) GCF of variables :(b^4,b^2,b^4)

b^4= b × b × b × b

b^2 = b × b

b^4 =b × b × b × b

GCF of variables :(b^4,b^2,b^4) is b^2

3) GCF of c^3 and c: c is not the GCF of the polynomial. The variable c is not common to all terms, so a power of c should not have been factored out.

4) 80b^4-32b^2c^3+48b^4c

=16b^2(5b^2-2c^3+3b^2c)

David applied the distributive property.

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