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mote1985 [20]
3 years ago
15

PLS HELP ME ASAP WITH 42!! (MUST SHOW WORK!!) + LOTS OF POINTS!! *best if show picture with work!!*

Mathematics
1 answer:
ddd [48]3 years ago
3 0
I thought this would be simple, as I'm familiar with algebra and not really "The constant of proportionality," but I will do my best.

So this said "Constant of proportionality," is referring to basically the answers for the equation when X equals certain numbers.

Make a table of different answers when you plug in X and you get the 'Constant of proportionality.'

y = 2.5x + 3
y = 2.5(1) + 3
y = 2.5 + 3
y = 5.5

Since we plugged in 1 for X and got 5.5 for Y, our input and output is (1, 5.5)

Replace X for a different value, and you will get a bunch of different numbers that will in essence be your function inputs and outputs.  Make a table of these and you have your answer.

EXAMPLE - 
-= x =-   -= y =-
-= 1 =-   -= 5.5 =-
-= 2 =-   -= 8 =-
-= 3 =-   -= 11.5 =-
-= 4 =-   -= 13 =-


So there you have it.  I hope this helps!  If you have any further questions, don't hesitate to ask.
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Two motorcyclist A and B, started simultaneously moving towards each other. From the graph given below, find the distance each o
harina [27]

Answer:

<em>Distance covered by motorcyclist A = 700 - 300 = 400 km</em>

<em>Distance covered by motorcyclist B = 300 - 0 = 300 km</em>

<em>The time before they met went for 5 hours</em>

<em>Average speed of motorcyclist A would be: 400/5 = 80 km/hour</em>

<em>Average speed of motorcyclist B would be : 300/5 = 60 km/hour</em>

Step-by-step explanation:

<u><em>In the given question first we have to find the distance covered by each of them.</em></u>

Look at the graph. Motorcyclist A started from 700 km and met at 300 km with motorcyclist B

Thus the distance covered by motorcyclist A = 700 - 300 = 400 km

Motorcyclist B started from 0 km and met with A at point 300 km.

Thus the distance covered by motorcyclist B = 300 - 0 = 300 km

<u><em>Now we have to find the time before they meet.</em></u>

Look at the graph. Both motorcyclists met at point t=5

Thus the time before they met went for 5 hours

<u><em>Now find out the average speed of motorcyclists</em></u>

To find the average speed we require total distance and time.

Motorcyclist A covered 400 km within 5 hours

<em>Average speed of motorcyclist A would be: 400/5 = 80 km/hour</em>

<em>Average speed of motorcyclist B would be : 300/5 = 60 km/hour</em>

<em></em>

<em></em>

<em></em>

<em></em>

8 0
3 years ago
PLEASEE HELPP<br> FIND M A 19<br> B 22<br> C 23<br> D 161
Likurg_2 [28]
M∠ABC=180°

7x+x-4 = 180
8x = 180+4
8x=184
x=184:8
x=23

∠DBС = x-4 = 23-4 = 19°

Answer: 19°.
7 0
3 years ago
Read 2 more answers
Pls help it is due today
Tomtit [17]

Answer:

(-3, 5) is C

(0,-2) is  D

(-2, -2) is E

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Round 48.079 to the nearest tenth. <br><br>A:48.08<br>B:48.8<br>C:50<br>D:48.1​
tatiyna

Answer:

48.1

Step-by-step explanation:

Seven rounds up.

Hope this helped! :)

3 0
3 years ago
Read 2 more answers
Which shows the domain range of these function?
Bas_tet [7]

Answer: domain: (-oo,oo) range: (0,oo)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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