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

Can someone help me with this question (Beth and Lewis buy the same amount of fish pellets.If Beth feeds her goldfish 14fish pellets each day a container of pel

When electrons are shared, the type of bonding is called?

what is 0.986 rounded to the tenths place

what is 150% of 18 ?

Which correctly gives the expression using addition? –18.6 – 31.5 a. –18.6+31.5 b. 18.6+31.5 c. 18.6+(–31.5) d. –18.6+(–31.5)

y=9/7x+1 standard form

During the 1920s, people would buy stock on margin, which meant that they

The sum of Andre and Brandons scores on a math quiz is 180. Andres score is 2 times as much as 30 less than Brandons score. Find each students quiz score.

unscramble the spanish words to make a complete sentence mi Hermana que juega anos al voleibol hace tres

What is the 4 methods that can be used to separate mixtures?