Answer:
a = 1
Step-by-step explanation:
The problem is written as a linear equation:
((1/8)^-3)a = 512
512a = 512 . . . . simplify
a = 1 . . . . . . . . . divide by the coefficient of a
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We suspect you might intend the exponential equation:
(1/8)^(-3a) = 512
512^a = 512 . . . . . simplify
a = 1 . . . . . . . . . . . compare bases and exponents
equivalently, take the log to the base 512:
a·1 = 1
a = 1
Answer:
1/25000000000000000000 = 4 x 10^-10
Step-by-step explanation:
(4×10^-8)×(1×10^-12) = 1/25000000000000000000
Tina, the youngest child = t
The middle one = t + 2
The oldest one = t + 4
Sum of all the 3 children's age is 36.
⇒t + (t + 2) + (t + 4) = 36 ←Formula to calculate Tina's age (Answer C)
t + t + 2 + t + 4 = 36
3t + 6 = 36
3t = 30
t = 10
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Answer: Tina is 10 years old.
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Answer:
Vennetta
Step-by-step explanation:
Length of Venetta's paper clip chain = 3 feets 5 inches
Length of Bill's paper clip chain = 39 inches
Converting both Venetta's paper clip chain length to inches only :
1 foot = 12 inches
3 feets = (12 * 3) = 36 inches
Hence,
Length of Venetta's paper clip chain in inches :
(36 + 5) inches = 41 inches
41 inches > 39 inches .
Hence, Venetta has the long clip chain.
To get 10% of 40, you move the decimal point one way to the left. So 10% of 40 is 4
Now you need 2% and because you know 10% is 4, you divide that by 10 and multiply it by 2 because of the 2%
4/10=.4 .4•2=.8
Now you add them
4+.8=4.8
12% of 40 is 4.8