3 years ago

3x+2y=11 y=5x-1 SUBSTITUTION WORTH 10 POINTS

1 answer:

5 0

X=1 and y=4. first I did
3x+2y=11
y=5x-1
and 3x+2(5x-1)=11
=3x+10x-2=11
=13x-2=11
cancel 2 out
13x=13
x=1. then simply add x in the original y equation,
y=5x-1
y=5(1)-1
y=5-1
y=4.
check your work
3(1)+2(4)=11
4=5(1)-1
again X=1 AND Y=4
Hope this helped

You might be interested in

The price of an item has been reduced by 80%. The original price was $95. What is the price of the item now?

Jobisdone [24]

Step-by-step explanation:

sellingprice−costprice

×100

sp−95

×100=80

openthebracket

100sp−9500

=80

100sp−9500=7600

100sp=7600+9500

100sp=17100

sp=171

8 0

3 years ago

3,540+6.112× 10 to the power of 3

Nastasia [14]

Answer:

9652

Step-by-step explanation:

Hope that helps!

7 0

3 years ago

If 4^(x+2) = 48 what is 4^x

ivanzaharov [21]

Answer:

Step-by-step explanation:

$4^{(x+2)} = 48 \\ \\ {4}^{x} . {4}^{2} = 16.3 \\ \\ {4}^{x} . \cancel {16} = \cancel {16} .3 \\ \\ {4}^{x} = 3$

4 0

3 years ago

Find the surface area of a square prism with a side measure of 15

Phoenix [80]

Since the length is 15, and the width would be 15, you need to first do 15 x 15.

15 x 15 = 225

Multiply the 6 faces.

225x6

Your final answer would be 1,350.

7 0

3 years ago

The expression 2y+3y2−5y+y2simplifies to 4y2−3y <br> true or false

Mumz [18]

Answer:

False?

Step-by-step explanation:

I'm pretty sure it's false because wouldn't it simplify to 5y? Sorry if I'm wrong. :)

8 0

3 years ago