Answer:
He has to score 84 %
Step-by-step explanation:
64 + 64 + 64 + 64 = 256
5*68 = 340
340 - 256 = 84
(64 + 64 + 64 + 64 + 84)/ 5 = 68
the answer is C.
A false statement implies a true statement , so the conditional statement is true.
Answer:
1.23 x 10^8
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Step-by-step explanation:
Scientific notation has 1 number to the left of the decimal and is multiplied by 10 raised to the number of spaces the decimal is moved.
A) 5.9 x 10 ^ 9
B) 4 x 10 ^ -2
C) 1 km = 100,000 cm
4x 10^-2 x 100,000 = 4000 fireflies per km = 4 x 10 ^3 fireflies per km
5.9x 10^9 x 4x 10 ^3 = 2.4 X 10^13
The correct answer is B.
+ 15 represents the 15 miles she already ran.
30x represents the amount of miles she will need to run each day (because there are 31 days in January, and 1 of them has already been accounted for.