3 years ago

- 3x-4y=31 -2x + y = 6 Solve the system(by substitution)

Mathematics

1 answer:

Aleks [24]3 years ago

5 0

Answer:

x = -5

y = -4

Step-by-step explanation:

You might be interested in

Solve pls brainliest

Pavel [41]

Answer:

-3

Step-by-step explanation:

using pemdas, we first divide -18 by 6 to get -3. next, we subtract -3 from -6: -6-(-3)=-6+3=-3

3 0

3 years ago

Read 2 more answers

An artist plans a sculpture by stacking two cubes. Write an algebraic expression the artist can use to find the volume of the sc

vesna_86 [32]

Answer:

$V= 2x^3$

The volume is 128cm^3

Step-by-step explanation:

Given

$Cubes = 2$

$Sides = 4cm$

Required

Determine an expression for its volume

Find the volume

Volume of a cube is:

$Volume = x^3$

Where x represents the length of a side

So, volume of 2 cubes would be:

$V= x^3 + x^3$

$V= 2x^3$

Solving (b): Volume when x = 4

Substitute 3 for x in $V= 2x^3$

$V = 2 * 4^3$

$V = 2 * 64$

$V = 128$

<em>Hence, the volume is 128cm^3</em>

5 0

3 years ago

You earn 100 brainly points if you help me. Triangle ABC below has a right angle C and a height CD. (A height in a triangle conn

melamori03 [73]

Answer:

CD = 3

Step-by-step explanation:

see picture.

8 0

3 years ago

Read 2 more answers

Please help! Thank you.

Pani-rosa [81]

Answer:

2.478x10^7

Step-by-step explanation:

They give you each radius, so you just add them together.

15,300,000+9,480,000=24,780,000 = 2.478x10^7

(or)

1.53x10^7+0.948x10^7= 2.478x10^7

3 0

3 years ago

Find tan(Q). A. 1/2 B. 2/2 C. 1 D. Cannot be determined

Nata [24]

B........................

8 0

4 years ago