Do the paired points in the table represent a proportional relationship on the graph?

Mathematics

2 answers:

adelina 88 [10]3 years ago

8 0

If we find the unit rate for the graph, that means it's proportional. For the first question, we could see that the unit rate is 2/1, so it's proportional.

Luba_88 [7]3 years ago

7 0

Ok so first n a graph y is over x so it would be 1/2 2/4 3/6 and 4/8 which can all be divided to 1/2 so yes they are proportional

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The manager of a 100-unit apartment complex knows from experience that all units will be occupied if the rent is $800 per month.

Ede4ka [16]

800 * 100 = 80000
810 * 99 = 80190
900 * 90 = 81000
1000 * 80 = 80000
(800 + 10n) (100-1n)
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6 0

3 years ago

the sum of the digits of a two number is 14 .if 36 is substracted from the number,the places of the digits are reversed.find the

Taya2010 [7]

The number in the ones place= X
The number in the tenths place= y
y+x=14.
y=14-x

Original placement of numbers=10y+x
New placement of numbers(after subtraction of 36)= 10x+y

10y+ x-36=10x+y
Substitute y with 14-x
So we would get

10(14-x)+ x-36=10x+(14-x)
=140-10x+x-36=10x+14-x
After transposing we get
140-14-36=10x-x+10x-x
=90=18x
X=90/18
x=5

Y=14-x
=14-5
=9

So the two digit number is
10y+x
=90+5
=95

5 0

3 years ago

Hi yes I have more questions theyre in the pics as well as here

navik [9.2K]

Answer:

1.-6

Step-by-step explanation:

I don't know how to do the second one but

BD = DC

x+8 = 3x+2

2x=-4

x=-2