3 years ago

Which is the best first step and explanation for solving this system of equations? 3x+4y=12 3x=2y-8

Mathematics

1 answer:

Greeley [361]3 years ago

6 0

Answer:

Since it is a simultaneous equation,

Using elimination method, Multiply equation 1 by the co efficient of x in equation 2 and multiply equation 2 by the co efficient of x in equation 1.

Step-by-step explanation:

For further explanation , Please contact me through the comment section.

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What dose this = to? triangles = to 180 buts all i know

lara31 [8.8K]

7. Straight lines are also = to 180°

If you look at the diagram, when you add the two angles together, they form a straight line.

Since the angles add up to 180°, you can do:

(x + 25)° + (4x + 5)° = 180°

x + 25 + 4x + 5 = 180 Combine like terms

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3 years ago

Find the length of the missing side. 1) 52 cm 2) 42cm 3) 25 cm 4) 48 cm

padilas [110]

Answer:

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Step-by-step explanation:

Use the pythagorean theorem to solve for missing sides in a right triangle.

20²+48²= missing side

20²+48²=2704

Take the square root of 2704 to get the missing side.

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Which is the best first step and explanation for solving this system of equations? 3x+4y=12 3x=2y-8​

Which is the best first step and explanation for solving this system of equations? 3x+4y=12 3x=2y-8