megan3421 megan3421

04-07-2021
Mathematics

contestada

2p -5q=8.. 3p-7q=11 use substitution

Respuesta :

rijarafiquee rijarafiquee

04-07-2021

Answer:

p = -1 q = -2

Step-by-step explanation:

3p - 7q = 11 -7q = -3p + 11 q = 3/7p - 11/7

2p - 5(3/7p - 11/7) = 8

2p - 15/7p + 55/7 = 8

-1/7p + 55/7 = 8

-1/7p = 1/7

p = -1

2(-1) - 5q = 8

-2 - 5q = 8

-5q = 10

q = -2

Answer Link

Otras preguntas

What are the physical and chemical properties of compounds most influenced by?

hi, my homework is on khan academy but my screen is ALL broken. cant solve problem, pls dont delete this, need somebodys help. :(

PLEASE HELP! I NEED IT!

Can you help me on this? Thanks

A salesman earns 5% commission on all the merchandise that he sells. Last month he sold $5000 worth of merchandise. How much commission (in dollars) did he earn

Which object has a net force of -68 N? F = 31 N F = 89 N F, = 27 N F=-53N F = 53 N F-56N F = 103 N F = 34 N F=-102 N F = -27 N F = -74 N F=-89 N

Why are marine mammals so important

who was the first president

Along with boycotting the taxes, many colonists did this to the tax collectors.

A meteorologist finds that the temperature at the 6000-foot level of a mountain is 76°F and the temperature at the 12,000-foot level of the mountain is 49°F. W