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N76 [4]
2 years ago
14

The wire is

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
4 0

Step-by-step explanation:

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Can anyone just explain how to do a distant rate time problems because I'm confused about them
Ulleksa [173]

Answer:

The formula for distance problems is: distance = rate × time or d = r × t. Things to watch out for: Make sure that you change the units when necessary. For example, if the rate is given in miles per hour and the time is given in minutes then change the units appropriately.

Step-by-step explanation:

Here is an example.

Two cars started from the same point, at 5 am, traveling in opposite directions at 40 and 50 mph respectively. At what time will they be 450 miles apart?

After t hours the distances D1 and D2, in miles per hour, travelled by the two cars are given by

D1 = 40 t and D2 = 50 t

After t hours the distance D separating the two cars is given by

D = D1 + D2 = 40 t + 50 t = 90 t

Distance D will be equal to 450 miles when

D = 90 t = 450 miles

To find the time t for D to be 450 miles, solve the above equation for t to obtain

t = 5 hours.

5 am + 5 hours = 10 am

4 0
3 years ago
Match each step to it's justification to solve 2x+5=19
Leviafan [203]

Answer:

can i have brainliest? :) hope this helpeddd

Step-by-step explanation:

i don't know what im supposed to match it too but im just gonna solve the equation

2x + 5 = 19

isolate the variable

2x + 5 = 19

     -5     -5

2x = 14

__   __

2       2

x=   7

3 0
3 years ago
Please find the value of x and explain to me, I will mark brainliest<br>​
ser-zykov [4K]

Answer:

The value of X is always 1

5 0
2 years ago
HELP PLEASE !!!
enot [183]

Given: m ∠3 = m ∠4

To Prove: ∠1, ∠2 are supplementary .

Proof : m ∠3 = m ∠4    ( Given)                                              ------------(1)

m<2 + m< 3 = 180 degrees  ( <2 and <3 form a linear pair). ----------(2)

m< 4 = m<1                            (Vertical angles are equal)       -----------(3).

Substituting, m<4 =m<1 in (1), we get

m ∠3 = m ∠1.

Now, substituting m ∠3 = m ∠1 in (2), we get

m<2 + m< 1 = 180 degrees.

Sum of m <1 and m<2 is 180 degrees.

Therefore,<em> ∠1, ∠2 are supplementary by the defination of supplementary angles.</em>


3 0
2 years ago
Read 2 more answers
Sara earns a basic salary of 14250 every month with an additional 12% commission on her sales. If Sara sold items worth AED 2226
never [62]

Answer:

A

Step-by-step explanation:

Commission: 22264*0.12=2671.68

Total pay: 14250+2671.68=16921.68

6 0
2 years ago
Read 2 more answers
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