emmass15 emmass15

02-03-2021
Mathematics

contestada

1. What is the solution of the system
{3x - y = 14
{4x + y = 21 ?
A (−5, 3)
B (4, −2)
C (5, 1)

Respuesta :

surjithayer10otahza surjithayer10otahza

02-03-2021

Answer:

C

Step-by-step explanation:

3x-y=14

4x+y=21

add

7x=35

x=35/7=5

4×5+y=21

y=21-20=1

so (5,1 ) is the solution.

Answer Link

Otras preguntas

Abigail has 16 apples she eats 2 apples per day.let y be the apples remaining as a function of the number of week,x

Do you support vegetarianism? Why or why not?

ABCD is a rectangle. Use the diagram to answer the questions. The length of AB is . The length of BC is . The length of AC is .

The climate region labeled with the number one on the map above is the __________ region. A. Mediterranean B. humid subtropical C. marine west coast D. humid co

If like line A is changed to line B how will the equation change

Which of these groups of Christians were NOT considered religious dissenters in England? Puritans Quakers Puritans Anglicans

Match vocabulary to it's definition 1. peat ravine 2. mulch increased aridity 3. gorge disconnected part of a country 4. fallout radioactive waste 5. ex

In eukaryotic cells, how do transcription factors act to control gene expression? A. They remove introns from pre-mRNA. B. They bind to regulatory regions of

which business leader founded standard oil company?

the volume of a cube is 1,953,125 centimeters what is the length of the sides