How can you solve a system of linear equations? How can you check your solution?

1 answer:

3 0

<span>After you solve a system of linear equations, you will get an ordered pair (x,y). Replace x with whatever number you obtained for x, and replace y with whatever number you obtained for y. If both your equations are true upon simplifying, you know it is correct.</span>

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Felicia’s mother is four times as old as Felicia. In 16 years, her mother will be twice her age. How old is Felicia now?

dexar [7]

Answer:

Step-by-step explanation:

Now:16 x 2 = 32

16 years:32 x 2 =64

64 / 2 = 32

6 0

3 years ago

Read 2 more answers

2 4/5 ÷ 3 1/2 + 1/5 = ?

Irina18 [472]

2 4/5 ÷ 3 1/2 + 1/5 = 1

explanation:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

hope this helps <3

4 0

2 years ago

PLEASE ANSWER ASAP!!!

sweet-ann [11.9K]

Answer:

(4,-2)

Step-by-step explanation:

If we are reflecting a point across the y-axis, that point must be on the same horizontal line that the pre-mage is was, this means the y coordinate must remain the same. Now we want the points on both sides of the y-axis to have the same distance. x and -x have the same distance from 0. This means you will need to take the opposite of x.

So a point (x,y) being reflected over the y-axis will give (-x,y).

( x , y)->(-x,y) means we have:

(-4,-2 )->(4,-2)

You can graph this to confirm it looks like a reflection through the y-axis.