Answer:
x=1
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
-6x+9=x+2
-7x=-7
7x=7
x=1
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Answer:
6,750,000 cm³ = 6.75 m³
Step-by-step explanation:
a scale version means that the ratio of every dimension of scale vs. real object is 1/50.
volume is created by multiplying 3 dimensions.
so, going from scaling to real the volume has to be multiplied by 50×50×50 = 50³ = 125000
so, as for the scale model we needed 54 cm³, for the full size object we need 54×125000 = 6,750,000 cm³ of metal.
or to bring it to m³ (1m³ = 100×100×100 cm = 1000000 cm³)
that would be 6.75 m³ of metal.
The lateral area is given by
A = 2πrh
A = 2π(15.1 in)(12.8 in)
A ≈ 1214 in²
Answer:
x = 1/3 and y = 3
Step-by-step explanation:
It is given the system of equations
3x + 2y = 7 ----(1)
-3x + 3y = 8 ----(2)
<u>To find the solution</u>
Add eq(1) and eq (2) we get,
3x + 2y = 7 ----(1)
<u>-3x + 3y = 8</u> ----(2)
0 + 5y = 15
y = 15/5 = 3
Substitute the value of y in eq(1)
3x + 2y = 7 ----(1)
3x + 2*3 = 7
3x + 6 = 7
3x = 7 - 6 = 1
x = 1/3
Therefore
x = 1/3 and y = 3
