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disa [49]
3 years ago
14

5.How many solutions does the system have?

Mathematics
2 answers:
OLga [1]3 years ago
8 0

Answer:

D) No solution

Step-by-step explanation:

That is because...

x-y=4              2x-2y= -8

-y= -x+4          -2y= -2x-8

y= x-4              -y= -x -4

                       y=x+4

y=x-4 does not equal to y=x+4

faust18 [17]3 years ago
5 0

Answer:

one solution = a, that is your answer

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Solve the following equation for x. x = -2 x = 2 x = -17 x = -7 (x - 5)/2 = -6
nordsb [41]

Step-by-step explanation:

x= -2,

(x - 5) / 2= -6

( (-2) - 5) / 2= -6

(-7) / 2 = -6

-3.5 = - 6

right hand side not equal to left hand side of this equation.so,x= -2 cannot exist for this equation.

x=2,

(x - 5) / 2= -6

(2 - 5) / 2= -6

(-3) / 2= -6

-1.5 = - 6

right hand side not equal to left hand side of this equation.so,x= 2 cannot exist for this equation.

x= -17

(x - 5) / 2= -6

( ( -17) - 5) / 2= -6

(- 22) / 2= -6

-11 = -6

right hand side not equal to left hand side of this equation.so,x= -17 cannot exist for this equation.

x= -7,

(x - 5) / 2= -6

( ( -7) -5) / 2= -6

(-12) / 2= -6

-6= -6

right hand side equal to left hand side of this equation.so,x= -7 exist for this equation.

8 0
3 years ago
-7x-6y=-1
Xelga [282]
Cancel something
we cancel x's

multiply 1st equation by 5 and 2nd by 7 and add them
-35x-30y=-5
<u>35x-28y=7 +</u>
0x-58y=2

-58y=2
divide both sides by -58
y=-1/29
sub back
5x-4(-1/29)=1
5x+4/29=1
minus 4/29 from both sides
note, 1=29/29
5x=25/29
divide bot sides by 5 (or times 1/5)
x=5/29


(5/29,-1/29)
6 0
3 years ago
What's the volume and surface area of these two cylinders?
Vesnalui [34]
I swear im not trying to just get points but is this like a pick which is correct cause my answer is  <span>Cylinder B has a diameter of 6 inches and a height of 4 inches.</span>
4 0
3 years ago
Ricardo bought a bicycle for $98.00. He sold it to his friend Sandy for 5/6
svet-max [94.6K]

Answer:

Ricardo bought it for $98.00

Sandy bought it for $81.66 [5/6×98]

Jennifer bought it for $48.99. [ 3/5×81.66]

3 0
3 years ago
Help me on this :( pls
Doss [256]
X = 12 dhucdjvdsiksdjfbhfud gimme brainliest
4 0
2 years ago
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