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OlgaM077 [116]
3 years ago
5

GIVING BRAINLIST ANYONE WHO CAN SOLVE ANY OF THEM!!!!

Mathematics
2 answers:
Nataly [62]3 years ago
8 0

Answer:

1. 36

2. 127

3. x = 36

Step-by-step explanation:

A line is 180 degrees.

1. 180 - 144 = 36

2. 38 + 15 = 53,  180 - 53 = 127

3. 180 - 92 = 88,  88 - 16 = 72,   72 ÷ 2 = 36

nekit [7.7K]3 years ago
5 0

Answer:

x=36

x=127

x=36

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A boat traveled 210 miles downstream and back. The trip downstream took 10 hours. The trip back took 70 hours. What is the speed
musickatia [10]

Try this solution:

Answer: 6 & 4.5 (m-per-h)

Step-by-step explanation:

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- the upstream speed is: V-Vc.

- according to the described above the distance for downstream is S1=(V+Vc)*t1, where t1=10; the distance for upstream is S2=(V-Vc)*t2, where t2=70.

- for whole travel down- and upstream: S=S1+S2.

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\left \{ {{(70(V-V_c)=10(V+V_c)} \atop {70(V-V_c)+10(V+V_c)=210}} \right.

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4 0
3 years ago
Please i need help.....
Lina20 [59]

Answer:

A.105°

Step-by-step explanation:

Angle at W and V are equal and the angles at T and U are also equal

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5x + 15 = 3x + 21

5x - 3x = 21 - 15

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All angles in a triangle add up to 180°

15(3) + 3(3) + 21 = 75°...then subtract from 180°..so as to obtain angle at VXU

180 - 75 = 105°

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3 years ago
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