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goldenfox [79]
3 years ago
12

A baby’s weight increases by 8% over a month from birth to 4.05kg, what is the weight at birth?

Mathematics
2 answers:
jeka57 [31]3 years ago
7 0

Answer:

Hi, There! ~Jay here~ There Are 2 Possible Answers to your Question!

<u><em>3.726 Is The correct Answer</em></u>

Step-by-step explanation:

4.05/ 0.92 = 3.726kg

Hope this Helps!

mixas84 [53]3 years ago
5 0

Answer:

3.726 or 3.75

Step-by-step explanation:

4.05-8%=3.75

*VirtuosoTeen*

Good luck on your assignment & enjoy your day!

*RosalindCordelia:)

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Mr. Pennington had a board 2 1/4 feet long. He
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Me. Pennington had 6 inches left over.

Explanation.
2 1/4 feet is equal to 27 inches. If he used 21 inches, then he'd had 6 inches left over; 27-21=6.

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If the measure of an angle is 49 degrees, what is the measure of its complement?
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D

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3 years ago
How does a "for every" statement show a ratio comparison?
Alchen [17]
Example: For every 3 boys, there are 4 girls.

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How to use it?

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3 27
— = —
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8 0
3 years ago
An airplane climbs 100 feet during the first second after takeoff. In each succeeding second it climbs 100 feet more than it cli
tigry1 [53]

Answer:

15 seconds.

Step-by-step explanation:

∵ The distance covered by plane in first second = 100 ft,

Also, in each succeeding second it climbs 100 feet more than it climbed during the previous second,

So, distance covered in second second = 200,

In third second = 300,

In fourth second = 400,

............, so on....

Thus, the total distance covered by plane in n seconds = 100 + 200 + 300 +400......... upto n seconds

=\frac{n}{2}(2\times 100 + (n-1)100)  ( Sum of AP )

=\frac{n}{2}(200+100n-100)

=\frac{n}{2}(100+100n)

=50n+50n^2

Suppose the distance covered in n seconds is 12,000 feet,

\implies 50n+50n^2=12000

n+n^2=240

n^2+n-240=0

n^2+16n-15n-240=0

n(n+16)-15(n+16)=0

(n-15)(n+16)=0

\implies n=15\text{ or }n=-16

∵ n can not be negative,

Hence, after 15 seconds the plane will reach an altitude of 12,000 feet above its takeoff height.

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3 years ago
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