2 years ago

When solving a system of equations, how do you determine which method to use?

1 answer:

5 0

Substitution is best to use one one or both equations is already solved for one of the variables. Elimitation can be use if all variables have a coefficient other than 1.

You might be interested in

What's the equivalent to x=ln(y)

kobusy [5.1K]

Find the inverse of that function:

y = e^x

5 0

2 years ago

Solve for x. 25x=65 1225 125 3 6

NARA [144]

$25x = 65$
Divide both sides by 25 to isolate x:

$\frac{25x}{25} = \frac{65}{25} \\ \\ x = \frac{13}{5} = 2.6$

8 0

3 years ago

Read 2 more answers

The seventh grade class at a Christian school had 24 students enrolled at the beginning of the school year. At the end of the sc

Darya [45]

Answer:

12.5%

Step-by-step explanation:

27-24=3

3/24=1/8

1/8=0.125

0.125 in percent is 12.5%

7 0

2 years ago

I NEEDDD HEELPPPP

seraphim [82]

hm its just that i dont know so maybe try do smth else

8 0

2 years ago

Sally painted a picture that has an area of 480 square inches. The length of the painting is 1 1/5 as long as it is wide. What a

marishachu [46]

So Length * Width = 480 in. sq.
L=1 1/5 or 1.2W
substitute the L for 1.2W
1.2W*W=480 in sq
divide both sides by 1.2
w*w= 400
W²=400
square root of both sides
Width = 20 inches
Length= (1.2width) or (20*1.2)
Length=24 inches

6 0

3 years ago