3 years ago

How does writing equivalent equations help you solve a system of equations?

1 answer:

3 0

Writing equivalent equations help you solve system of equations because it sets it up for being broken down part by part.

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I don’t know how to find the LCM for this.

nekit [7.7K]

Answer:

Step-by-step explanation:

7mn³|7m²n³ ---14mn^5

| m---2n²

LCM=7mn³×m×2n²

=14m²n^5

or LCM of 7,14 =14

Highest power of m=2

Highest power of n=5

LCM=14m²n^5

6 0

3 years ago

120 times 1.75 show your work plz help me I really dont get it

sineoko [7]

120 * 1.75 = 200

5 times 0 = 0

5 times 2 = 10 carry the 1

5 times 1 = 5 + 1 = 6

7 times 0 = 0

7 times 2 = 14 carry the 1...

7 times 1 = 7 + 1 = 8
1 times 0 = 0
1 times 2 = 2
1 times 1 = 1
add it all together and you get 200.

6 0

3 years ago

What is the equation of the circle whose center and radius are given.

muminat

Hello!

The equation for a circle is

$(x - h)^{2} + ( y - k)^{2} = r^{2}$

(h,k) is the center
r is the radius

Put in the values you know

$(x - 7)^{2} + ( y + 3)^{2} = 7^{2}$

Simplify

$(x - 7)^{2} + ( y + 3)^{2} = 49$

The equation is $(x - 7)^{2} + ( y + 3)^{2} = 49$

Hope this helps!

5 0

3 years ago

Read 2 more answers

3 more than the cube of a number.

Artemon [7]

Answer:

x³+3

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Given: