2 years ago

Solve each system by substitution y=2x-1. 3x+8y=11

Mathematics

2 answers:

OLga [1]2 years ago

8 0

Answer:

x=1, y=1

Step-by-step explanation:

Sub y=2x-1 into 3x+8y=11

3x+8(2x-1)=11

3x+16x-8=11

19x=11+8

19x=19

x=1

Sub x=1 into y=2x-1

y=2(1)-1

y=2-1

y=1

adoni [48]2 years ago

7 0

Since 8+3 already equals 11, x=1 and y=1

You might be interested in

Suppose triangle ABC will be dilated using the rule . What will be the distance from the center of dilation, Q, to the image of

Blababa [14]

Answer:

Step-by-step explanation:

The rule of dilation is $D_{Q,\frac{2}{3}}.$ This means that each distance QX' is equal to $\dfrac{2}{3}QX,$ where X is initial point and X' is its image after dilation.

Since QA=6, then

$QA'=\dfrac{2}{3}\cdot 6=4.$

6 0

2 years ago

Read 2 more answers

Calculate the size of a cube

Varvara68 [4.7K]

Answer:

A cube size is 150mm

Step-by-step explanation:

I think it will be

4 0

2 years ago

-2-(3(x+6)-9-(7-x)-3x

olchik [2.2K]

Answer:

- 24 - 5x

Step-by-step explanation:

1) Remove Parentheses

-2 - 3x - 6 - 9 - 7 + x - 3x

2) Collect like terms

( -2 - 6 - 9 - 7) + (-3x+x-3x)

3) Simplify

7 0

2 years ago

If angle 1 is not congruent to angle 2, which conclusion must be true?

netineya [11]

That they are not congruent

3 0

2 years ago

There are 12 rabbits at a pet store Gabriela has 5 1/2 ounces of parsley to feed the rabbits how much parsley does each rabbit g

julia-pushkina [17]

Answer:

2.18 ounces

Step-by-step explanation:

12/5.5=2.181...

rounded it is 2.18

hope this helps :3

if it did pls mark brainliest

6 0

1 year ago