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ElenaW [278]
3 years ago
9

Can you help me plssssss

Mathematics
2 answers:
LekaFEV [45]3 years ago
5 0
1)105
2)125
3)95
4)115
raketka [301]3 years ago
4 0

Answer:

75=115

55=95

85=125

65=105

Step-by-step explanation:

All supplementary angles are added by 40 degrees.

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what is the greatest place value position where the digits differ? what does that mean if we use it in decimal?
Brums [2.3K]
The Tenths place because it's the first
6 0
3 years ago
Find the midpoint of the line segment whose endpoints are the given points. (-24.6, 38.1) and (-25.7, -17.7)
CaHeK987 [17]

Answer:

Midpoint is(-25.15,10.2)

Step-by-step explanation:

A line segment refers to line that has two endpoints.

Let (a,b),(c,d) be the endpoints of a line segment.

Midpoint of the line segment is given by (\frac{a+c}{2} ,\frac{b+d}{2})

Take the given points as follows:

(a,b)=(-24.6,38.1)\\(c,d)=(-25.7,-17.7)

Midpoint of a line segment =(\frac{-24.6-25.7}{2},\frac{28.1-17.7}{2})

=(\frac{-50.3}{2} ,\frac{20.4}{2} )\\=(-25.15,10.2)

7 0
3 years ago
A submarine cruises underwater at 20 km/h and on
Darina [25.2K]

Answer:

System of equations:

20x + 30y = 650

x + y = 25

Time underwater = 10 hours

Time at the surface = 15 hours

Step-by-step explanation:

Let x = time underwater at 20 km/h.

Let y = time on the surface at 30 km/h.

speed = distance/time

distance = speed * time

distance underwater: 20x

distance on the surface: 30y

total distance: 650

20x + 30y = 650

total time: x + y

total time: 25

x + y = 25

20x + 30y = 650

x + y = 25

20x + 30y = 650

-20x - 20y = -500

--------------------------------

          10y = 150

              y = 15

x + y = 25

x + 15 = 25

x = 10

4 0
3 years ago
Mee: 5324611502 Pa: here​
arlik [135]

Answer:

yuh

Step-by-step explanation:

3 0
3 years ago
If one angle of a triangle is 63 and the other two are 7x degrees and 6x degrees what is X worth
Black_prince [1.1K]

Answer:

    x = 9

Step-by-step explanation:

Sum of all angles of a triangle = 180

                63 + 7x + 6x  = 180

                  63  +  13x    =180

                             13x   = 180 - 63

                              13x  = 117

                                 x  = 117/13

x = 9

6 0
2 years ago
Read 2 more answers
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