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joja [24]
4 years ago
13

X-y=11 2x+y=19 elimantion

Mathematics
2 answers:
Arte-miy333 [17]4 years ago
8 0
Answer:X=20/3 y=17/3
Rainbow [258]4 years ago
5 0

Answer:

x=20/3 y=17/3

Step-by-step explanation:

1. x-y=1

2. 2x+y=19

The first equation can be rewritten as 2x-2y=2

We can then subtract the second equation from this:

2x-2y=2

2x+y=19

-3y=-17

y=17/3

Plug this into to solve for x:

x-17/3=1

x=17/3+1

x=20/3

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The equation y = 18x shows that Roz earns $18 for each hour she works.
trapecia [35]

The link leads to a single table, and that table doesn't show [ y = 18x ].

You're looking for a table in which each 'y'-value is
18 times the 'x'-value that's right next to it.

Good luck in your quest.


3 0
3 years ago
Write an equation of the line that passes through (5, −1) and is perpendicular to the line y=12x−1.
Lisa [10]

Step-by-step explanation:

solution

let,A(5,-1)

given

y=12x-1

or, y = 12 × x + (-1)

comparing it with y=mx+c

we get

x=1

y = c = -1

now

A(5,-1) and B(1,-1)

equation of line is,

(y-y1)/(x-x1) = (y2-y1)/(x2-x1)

or, (y+1)/(x-5) = (-1+1)/(1-5)

or, (y+1)/(x-5) = 0/-4

cross multiply

-4y-4 = 0

or, 0=4y+4

or, 4y+4=0 is the required eqn

I think this is the process and answer too.

I hope this helps you

4 0
3 years ago
A customer buys 17.01 in gas and requests one five dollar [$5] lottery ticket, two one dollar [$1] lottery tickets, and one [$3]
ohaa [14]
I think the answer is $65.99. I believe you would add the values of all the lottery tickets he bought, so 5+1+1+3+5+2 = 17 plus the money he spent on gas 17+17.01 = 34.01 and then subtract the 34.01 from 100 to get $65.99
4 0
3 years ago
Read 2 more answers
Each of 4 tables at a party is set with a bowl of grapes. Each
andre [41]

Answer:

2.5

Step-by-step explanation:

youll have to multiply 4 times 5/8

8 0
3 years ago
A cone and a cylinder have congruent height and base bases. The volume of the cone is 18m squared. What's the volume of the cyli
zzz [600]
Short answer 3 times as much = 54 m^3 <<<<< answer

The volumes are krelated by k So solve for k

Volume of Cylinder = k Volume of the cone.
pi r^2 h = k(1/3 pi r^2 h)  Since you know that r is the same in both and so is h they divide out.
divide by h
pi r^2  = k (1/3 pi r^2 Divide by pi
r^2 = k (1/3 r^2 ) Divide by r^2
1 = k (1/3) multiply by 3
3 = k

The volume will be 3 times as much.as the cone.
3 * 18 = volume of cylinder.
54 <<<< volume of cylinder.


8 0
3 years ago
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