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3 years ago

How could you use the product of 10x42=420 to find the product of 5x42?

1 answer:

3 0

In this case, it's clear that 5 is half of ten, therefore, you have to divide the first equation in half, giving you 5x42= 210. If it was something such as 20x24, you just work the answer from the multiple of ten. Hope this helpsn

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(x-3y+ 3z=-4 2x+3y-z =15 (4x-3y- z=19 - What is the solution to the system?

lesya [120]

Answer:

x=5,y=1 and z=-2

Step-by-step explanation:

We are given that system of equation

$x-3y+3z=-4$ (I equation)

$2x+3y-z=15$ (II equation )

$4x-3y-z=19$ (III equation )

Equation II multiply by 3 then add with equation I

Then, we get

$7x+6y=41$ ....(Equation IV)

Subtract equation II from equation III then we get

$2x-6y=4$ (equation V)

Adding equation IV and equation V then, we get

$9x=45$

$x=5$

Substitute x=5 in equation V then, we get

$2(5)-6y=4$

$10-6y=4$

$6y=10-4=6$

$y=1$

Substitute x=5 and y=1 in equation then, we get

$5-3(1)+3z=-4$

$2+3z=-4$

$3z=-4-2=-6$

$z=\frac{-6}{3}=-2$

Hence, the solution for the given system of equation is given by

x=5,y=1 and z=-2

7 0

3 years ago

3( x + 4y + 6) - 2(x + 8y + 3).

ser-zykov [4K]

Answer:

x-4y+12

Step-by-step explanation:

4 0

3 years ago

Add. (4x-3) + (2x-4)

Ilya [14]

The answer would be:

6x - 7

I hope this helped you,

Have a great day

3 0

3 years ago

What is nth for 4, 8, 16, 32?

daser333 [38]

Answer: nth=4x

Step-by-step explanation: 4,8,16,32

So when x=1 nth=4

Then 4x should be the answer we need to find any term

7 0

3 years ago

Find the GCF of the monomials: 72x^3 y^2 and 210x^2y^5

denpristay [2]

Answer: The GCF of the monomials is 1.

4 0

3 years ago

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