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Masteriza [31]
4 years ago
13

DOES ANYONE UNDERTAND THIS? IF SO PLEASE HELP

Mathematics
1 answer:
Nana76 [90]4 years ago
8 0
The sides must be equal otherwise BC and AD wouldn't be parallel.  So
12x-6 = 2x+7 
10x = 13
x = 13/10 = 1.3

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автобус прошел 220 км за 27/7 часа.Сколько километров пройдет автобус за 54/7часа с той же скоростью?
egoroff_w [7]

Отвечать:

440 км

Пошаговое объяснение:

Учитывая, что :

Пройденное расстояние за 27/7 часов = 220 км

Расстояние, которое необходимо преодолеть за 54/7 часов, составит x

Следовательно, мы можем настроить перекрестное умножение:

27/7 = 220

54/7 = х

Крест умножить

27/7 х = 220 * 54/7

27x / 7 = 11880/7

3.8571428x = 1697.1428

х = 1697,1428 / 3,8571428

х = 439,99999

x = 440 км

Таким образом, за 54/7 часов будет преодолено расстояние 440 км.

4 0
3 years ago
Liam mixed 3 parts of lemon juice and 4 parts of water to make a drink. How many parts of lemon juice did Liam mix with each par
Maru [420]
3 parts lemon juice and 4 parts water
3 : 4 = 0.75
<span>He mixed 0.75 parts of lemon juice with each part of water. 

Hope this helps :)</span>
6 0
3 years ago
Can you help me graph this system of inequalities. And give the coordinates for the set.
vekshin1

Answer:

Here I made a yt vid to explain

Step-by-step explanation:

NEVER GONNA GIVE YOU UP

3 0
3 years ago
Read 2 more answers
A car travels along a straight line at a constant speed of 55.0 mi/h for a distance d and then another distance d in the same di
elena-14-01-66 [18.8K]

Answer:

a. 17.03 mi/hr b. 0 mi/hr or 18.99 mi/hr c. 17.03 mi/hr

Step-by-step explanation:

Av Vel =(V1+V2)/2 =26

Av Speed =d/t=55=> d=55t1

D=d+d 2d =2(55t1)=110t1

av Vel =110ti/(t1+t2)

t2=3.23t1 => total time =4.23 t1

a. V2=55t1/3.23t1 =17.03 mi/hr

b. velocity as vector quantity (v2-v1)/2 =18.88 or displacement d-d=0 and av velocity = (d-d)/2= 0/2

c. since all information are standing but opposite direction which doesn't affect speed as scalar av speed is the same

4 0
3 years ago
First to answer gets brainliest
s344n2d4d5 [400]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
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