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Marrrta [24]
2 years ago
7

Subtract (2/7 -5/21 ) from the sum of 3/4, 5/7 and 7/12​

Mathematics
1 answer:
olga55 [171]2 years ago
6 0
2/7 - 5/21 = 6/21 - 5/21 (find common denominator first, then subtract)
6/21 - 5/21 = 1/21

3/4 = 63/84
5/7 = 60/84
7/12 = 49/84

63/84 + 60/84+ 49/84 = 172/84
172/84 - 4/84 = 168/84

The answer is 168/84, or 2. Hope this helped!
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Can someone help me please
Alex_Xolod [135]

Answer: 1064 square meters

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h= 76 (90-14)

a=1/2x76x28=1064

7 0
2 years ago
A train leaves Zurich at 2240 and arrives in Paris at 0732. work out the time taken​
Alisiya [41]

The time taken to reach train from Zurich to Paris is 8 hours 52 minutes.

Step-by-step explanation:

          The given is,

                     Train leaves Zurich at 22:40

                     Train arrives Paris at 07:32

Step:1

          Time taken to reach from zurich to paris,

                            = Train leaves at Zurich - Train arrives at Paris

                            = 22:40 - 07:32

                            = 8.52 hours

Step:2  

         Time taken by train to reach from zurich to paris in minutes,

                           = 8.52 hours

                           = 4831 minutes 12 secs

Result:

        The time taken to reach train from Zurich to Paris is 8 hours 52 minutes, if a train leaves Zurich at 2240 and arrives in Paris at 0732.

4 0
2 years ago
URGENT NEEDS TO ME SUBMITTED BY MIDNIGHT!! The ratio of girls to boys in Mr. Hansen’s class is 4:5. The ratio of girls to boys i
nadya68 [22]
If the ratio of girls to boys in Mr. Hansen's class is 4:5, and the ratio of girls to boys in Ms. Luna's class is 8:10, then the equation that correctly compares the ratio of both Mr. Hansen's class and Ms. Luna's class are 4/5 = 8/10.
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Setler79 [48]

Answer:

59.15 in^2

Step-by-step explanation:

Using Heron's formula

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Area = sqrt ( 29.4(29.4-28.8)(29.4-18)(29.4-12) ) = 59.15 in^2

4 0
1 year ago
Read 2 more answers
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