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elena-14-01-66 [18.8K]
3 years ago
8

1)bir üçgenin kenar uzunlukları 2,3ve4 ile ters orantılıdır.üçgenin çevresi 39 cm olduğuna göre en uzun kenarı kaç cmdir?

Mathematics
1 answer:
goldenfox [79]3 years ago
3 0
1. 
The edge lengths of a triangle are inversely proportional to 2,3 and 4.
The actual proportions of the lengths are then
12(1/2:1/3:1/4)=6:4:3
The longest side 
= 39* (6/(6+4+3)
= 39*6/13
=18

2. 63 breads : 35 kg flour
is the same as 
54 breads : x kg flour
Cross multiply and get
x=54*35/63=30
30 kg of flour are needed to make 54 breads.
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0.810x0.00084/0.000400x0.0270leave the answer in a standard form<br>​
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4.5927 x 10^-2 ?

Step-by-step explanation:

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3 years ago
It took the football team 5 h to travel from Titletown, a total distance of 1320 km. Part of the trip was by bus and the remaind
inn [45]

Answer:

It took 2 hours by plane

Step-by-step explanation:

let bus is represented by x and plane is represented by y

the total distance of bus and plane will be represented by equation:

40 x + 600 y = 1320           (1)

the total time taken by bus and plane will be represented by:

x + y = 5                              (2)

solving equations (1) and (2) simultaneously:

Multiply by 40 on both sides in eq (2)  and then subtract (1) and (2)

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_______________

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7 0
2 years ago
Help anyone please !!!! Will mark whoever comment first as brain-list
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Answer:

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5 0
3 years ago
Read 2 more answers
Find the area of each shape, please help and I will give a lot points
Alex73 [517]

Answer:

15. Area of parallelogram = bh

    b = 9m

    h = 4m

    a = 9*4 = 36m^2

   You can also use the rectangle property here.

    a = l*b

    l = 9

    b = 6

    a = 9*6 = 54 m^2

    Though I would prefer the first one better.

16. Area of triangle = 1/2*bh

    b = 17m

    h = 3

    a = 17*3/2 = 51/2 = 25.5m^2

18. Area of a trapezium = a+b/2*h (a and b are two parallel sides and h the            height)

a = 15

b = 7

h = 15

a = 15+7/2*15 = 22/2*15 = 11*15 = 165m^2

19. Area of triangle = 1/2*bh

    b = 24

    h = 7

    a = 24*7/2 = 168/2 = 84

Hope u understood

Please mark as brainliest

Thank You

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