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bekas [8.4K]
3 years ago
13

What times what equals 19 ?

Mathematics
1 answer:
solong [7]2 years ago
7 0
Since 19 is a prime number it only goes into 1 and 19 so 1 times 19 is the only possible answer
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tensa zangetsu [6.8K]
The correct answer is D. 40
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What is the length of the string to the nearest inch
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1 center meter ☺️☺️...
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Two automobiles start together at the same place and travel along the same route. the first averages 40 miles per hour, the seco
erastovalidia [21]

55 mph minus 40 mph = 15 miles distance for each hour


So 5 hours * 15 = 75 miles difference after 5 hours



3 0
3 years ago
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A ship travels 62.5 km in 1st hour of sailing. Starting from 2nd hour, the distance travelled per hour is x% of that in the prec
Bas_tet [7]
Speed of the ship in the second hour =  (62.5 * x ) / 100  kph.

In third hour it is  [(62 * x) / 100 ] * x/100]

is 4th hour its is the above * x/100 again  so we can now form the equation

62.5x      x          x
------- *   ----  *  ----    =  32
100      100      100

62,5 x^3 = 32,000,000
x^3 =  512,000
x = 80 <-----  Answer  to (a)

(b)  Ship travels 62.5 in first hour then  this falls by a common ratio of 0.8 each hour so we have a geometric sequence 

Dist travelled in 6 hours  =  a1  1 - r^n
                                                --------  = 62.5* (1 - 0.8^6) / 1 -0.8 = 230.56

                                               1 - r

Answer is    230.56 km 




5 0
3 years ago
HELLLLPPPP MEEE PLEASE AND THANK YOU
Sonja [21]

Step-by-step explanation:

180° = m<A + m<B + m<C

180° = 45° +60° + m<C

180° = 105° + m<C

m<C = 180° - 105 °

m<C = 75°

3 0
3 years ago
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