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svlad2 [7]
3 years ago
13

X + 7y = "70" 3x − 6y = −33 step by step

Mathematics
1 answer:
Aneli [31]3 years ago
3 0

Answer:

x=7

y=9

Step-by-step explanation:

x+7y=70   ...(1)

3x-6y=-33

divide by 3

x-2y=-11   ...(2)

(1)-(2) gives

x+7y-x+2y=70+11

9y=81

y=9

x-2*9=-11

or x=-11+18=7

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Find the surface area S of the following cylinder.
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Answer:

384π

Step-by-step explanation:

From the diagram,

Diameter ( d ) = 16

Height ( h ) = 16

To find : Surface area of Cylinder = ?

Radius ( r ) = ?

Formula : -

r = d / 2

r = 16 / 2

r = 8

Formula : -

Surface area of Cylinder = 2πr ( r + h )

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4 0
2 years ago
The value of 7 in 375,081 is 7000
Morgarella [4.7K]
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5 0
3 years ago
How do i solve x/3+10=15
yaroslaw [1]

step-by-step.

x

3

+10=15

Step 1: Simplify both sides of the equation.

1

3

x+10=15

Step 2: Subtract 10 from both sides.

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Step 3: Multiply both sides by 3.

3*(

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x)=(3)*(5)

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Answer:

x=15

8 0
2 years ago
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6 0
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2 years ago
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