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timurjin [86]
3 years ago
12

Please help me on problems 17,18,19,20...explanation needed Thanks:)

Mathematics
1 answer:
nordsb [41]3 years ago
5 0
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A vet weighs 2 puppies. The small puppy weighs 2 1/9 a pound. The bigger puppy weighs 1 2/7 times as much as the small puppy doe
Luden [163]

Answer:

2 5/7

Step-by-step explanation:

In order to solve this problem you must multiply the weight of the original puppy by the 1 2/7 times the second puppy weighs, giving you 2 5/7.

The best way to do this is to turn the mixed numbers into improper fraction, then, multiply straight across and simplify.

8 0
3 years ago
What two-digit numbers greater than 69 are divisible by 2 and 11?
Mariulka [41]
88... 88/11=8 and 88/2=44
8 0
3 years ago
The ratio of carbon-14 to carbon-12 in a piece of wood discovered in a cave is R = 1/917. Estimate the age of the piece of wood
Colt1911 [192]

Answer:

The answer is "\bold{6.6 \times 10^{12}\ years}"

Step-by-step explanation:

Let the given value is:

R=\frac{1}{9^{17}}\\\\\to \frac{N_{c_{14}}}{N_{c_{12}}}=\frac{1}{9^{17}}\\\\\to t=\frac{2.303 \times 9^{17}}{5717}=6.6\times 10^{12}\ years

7 0
2 years ago
5×+9y, when x=8 and y =11
natima [27]

Answer:

139

Step-by-step explanation:

(5*8)+(9*11)

  40+99

     139

7 0
3 years ago
A wheel turns 1,800 revolutions per minute. How fast does it turn in radians per second?
Flauer [41]
1800:60=30 revolutions per second
30*2π=60π radians per second
3 0
3 years ago
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