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Natalija [7]
3 years ago
9

Solve the following system using substitution x − 5 y = 32 2 x − 9 y = 57

Mathematics
2 answers:
suter [353]3 years ago
8 0

Answer:

X = -3

Y = -7

Step-by-step explanation:

Hope this helps. Pls give brainliest.

Ratling [72]3 years ago
6 0

Answer:

x= - 3 and y= - 7

Step-by-step explanation:

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Step-by-step explanation:

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8 0
3 years ago
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1) A rectangular storage container with an open top is to have a volume of 15 m 3 . The length of its base is four times the wid
My name is Ann [436]

9514 1404 393

Answer:

  a) V = 4w²h

  b) SA = 4w² +10wh

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Step-by-step explanation:

The relevant formulas are ...

  V = LWH

  base area = LW

  lateral area = H(2(L+W))

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a) The length is 4 times the width, so the volume is ...

  V = (4w)(w)(h)

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__

b) The total surface area is the sum of the base area and the lateral area:

  SA = base area + lateral area

  SA = (4w)(w) + 2h(4w +w)

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__

c) The volume is 15 m³, so the height in meters in terms of the width in meters is ...

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  h = 15/(4w²)

Then the surface area is ...

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  SA = 4w² +37.5/w

__

d) The equation we have for surface area has one term for base area and a second term for lateral area. We can apply the cost factors to those terms to get the cost of materials:

  C = 10(4w²) +6(37.5/w)

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4 0
3 years ago
HELP! 10 minutes!!!!!
kotykmax [81]

Answer:

this one 1/5 = 3 x a

Step-by-step explanation:

1/5 =3×a  (divied both side by 3)

a= 1/5 ÷3

4 0
3 years ago
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