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PIT_PIT [208]
2 years ago
7

X=10 3x+5y=20 in the system of equations, what is the value of y

Mathematics
2 answers:
vova2212 [387]2 years ago
6 0
3(10) + 5y = 20
5y = 20 - 30
5y = - 10
y = - 2
Lera25 [3.4K]2 years ago
6 0
You can't get that problem to equal 20, Because 3*10=30 and 30+5 is 35 and if you stop there u can see u went way over 20 and the you're bout to multiply your answer again by y . So this is a treat question.  <span />
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How do you sole this question kelpie sold cameras on her web site. She bought the cameras for $65 each included a 60% markup to
postnew [5]
So 65 dollars was what she paid
each camera INCLUDED a 60% mark UP so
she sold each at a 60% markup

65 dollars=100% of origonal camers
she sold them for 100+60=160% of origonal price
65 dollars=100%
percent means parts out of 100 so
160%=160/100=1.6

find 160% of 65
'of' means multiply so
1.6 times 65=104

she sold each camera at $104
4 0
3 years ago
Use technology to approximate the solution(s) to the system of equations to the nearest tenth of a unit.
kherson [118]

Answer:

  • A.)  (3.6, 0.6)
  • D.)  (2.6, 0.4)

Step-by-step explanation:

See below for a graph.

___

Choices B, C, E can be eliminated on the basis that neither x nor g(x) can be negative. The domain of f(x) is x>0; the range of g(x) is x≥0.

7 0
2 years ago
Can someone help me get the answer but elimination please!!
pantera1 [17]
Y = 5x - 2
9y = -2x + 10

9y = 3x + 8

y = (3/9)x + 8/9
7 0
3 years ago
Use the rule 2 + 3 to find the missing number on the table.
vfiekz [6]

Answer:

14

Step-by-step explanation:

11 + 3 = 14

Hope it helps!

Thanks!

7 0
3 years ago
15 - 9 + 2.65 + 1.35 + 2(1.74)
statuscvo [17]
15 - 9 + 2.65 + 1.35 + 3.48
6 + 2.65 + 1.35 + 3.48
8.65 + 1.35 + 3.48
10 + 3.48
13.48
3 0
3 years ago
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