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Rudiy27
3 years ago
14

Please help, and please give me an explanation.

Mathematics
1 answer:
vichka [17]3 years ago
7 0
I Believe that it is not the last 3 Answers.
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1) Bob weighed 200 lbs, but after dieting for 6 months, he weighed 170 lbs.
aivan3 [116]

Answer: 15%

Step-by-step explanation:

The Percentage decrease will be:

= Decrease in weight / Old weight × 100

= (200 - 170) / 200 × 100

= 30/200 × 100

= 15%

The Percentage decrease is 15%

7 0
2 years ago
Find the 12th term of the sequence -15,-9,-3, 3
Reika [66]
First term (a) = -15
common difference(d)= -9-(-15)
= -9+15=6
So,
12th term(a12)= a +(n-1)d
= -15+(12-1)×6
= -15 + 11×6
= -15+66
= 51
4 0
3 years ago
Gabrielle's age is three times Mikhail's age. The sum of their ages is 84. What is Mikhail's age?
Whitepunk [10]

Answer: 21

Step-by-step explanation:

84 divided by 4 = 21 since grabielle is 21, and then mikhail is gonna be 3 times more so it’s gonna be 63

7 0
3 years ago
Read 2 more answers
HELP ASAP PLEASE 3 extra points if you get it right
-BARSIC- [3]
It would be the origin
8 0
3 years ago
Read 2 more answers
The population of a certain country since 1990 can be approximated by f(t)=0.008t2+2.1t+175 where f(t) is the population in mill
azamat

Answer:

\frac{f(20)-f(0)}{20-0} = \frac{220.2-175}{20}  = 2.26

Step-by-step explanation:

as with all functions f(t), the average rate of change on [a.b] is

\frac{f(b)-f(a)}{b-a}

6 0
3 years ago
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