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3 years ago

Alex wants to paint the four walls of her new office. The room has dimensions 18 feet by

Mathematics

2 answers:

jekas [21]3 years ago

7 0

Answer:

Step-by-step explanation:

Eduardwww [97]3 years ago

3 0

Answer:

Step-by-step explanation:

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Slove for x 3x+9y=24

7nadin3 [17]

Answer:

Step-by-step explanation:

Simplifying

x = 8 + 3y

4 0

2 years ago

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Which pair of words describes this system of equations 3y=9x-6 2y+6x=4

pishuonlain [190]

Answer:

Consistent and dependent

Step-by-step explanation:

Given

$3y = 9x - 6$

$2y + 6x = 4$

Required

The words that describe the equations

Make y the subject in (2)

$2y + 6x = 4$

Collect like terms

$2y = 4 - 6x$

Divide through by 2

$y = 2 - 3x$

Substitute: $y = 2 - 3x$ in (1)

$3y = 9x - 6$

$3(2 - 3x) = 9x - 6$

$6 - 9x = 9x - 6$

Collect like terms

$9x+9x = 6+6$

$18x = 12$

Solve for x

$x = \frac{12}{18}$

Simplify

$x = \frac{2}{3}$

Substitute $x = \frac{2}{3}$ in $y = 2 - 3x$

$y = 2 - 3*\frac{2}{3}$

$y = 2 - 2$

$y =0$

So, we have:

$x = \frac{2}{3}$ and $y =0$

The system is consistent because it has at least 1 solution

The system is dependent because it has more than 1 solution

6 0

3 years ago

Someone please help me quickly i will give brainlyist

scZoUnD [109]

(16,5) it should be

16 input

5 output

if you went to 5 ont he y-axis and keep going till it hits the line the x seems to be 16.

im deeply sorry if this is wrong.

4 0

3 years ago

A sphere is placed in a cylinder such that the sphere touches (is tangent to) the top, bottom, and sides of the cylinder. The vo

Leona [35]

Answer:

Volume of the cylinder = 729π

Step-by-step explanation:

Volume of the sphere = 4/3πR^3 = 972π

The radius of the sphere is evaluated.

R = 9 unit

H = 9

Hence volume of the cylinder = πR^2H = π x 9 x 9 x 9 = 729π

8 0

3 years ago

4x + 5y = 30 5x + 3y = 31

Natalka [10]

Answer:

y=2

x=5

trust me its by calculator

6 0

2 years ago

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