khalibuscus khalibuscus

18-02-2021
Mathematics

contestada

Is the ordered pair (2.1) a solution to the system below?
21x + 5y = 7
4x – 3y = 5
yes or no

Respuesta :

jemuelgarcia88 jemuelgarcia88

18-02-2021

Answer:

The first solution is wrong, the second one is correct.

Step-by-step explanation:

21x+5y=21(2)+5(1)= 42+5= 47 then,

4x-3y=4(2)-3(1) = 8-3= 5.

2 is for x, then 1 is for y.

Answer Link

Otras preguntas

Describe how your community could better prepare its citizens for that natural disaster List three specific items it can improve

Remplacez les noms par les pronoms « d'objet direct » ou « d'objet indirect > 1. Elle a acheté les cravates à ses fils. 2. Je veux envoyer le cadeau à ces fi

The diameter of the circle is 34cm and a chord is at a distance of 15cm from the centre. Find the length of the chord of the circle. circles chapter

what do Primary Source mean in the middle ages

What does Victor do after he is successful in his experiment? A. runs away because he is afraid of what he created B. writes a letter home explaining his succe

A physician orders Fragmin 1,600 international units subcutaneously stat. There are 9-mL vials of Fragmin (dalteparin) 10,000 international units/mL available i

Describe how an interest group might persuade the passage of a law that goes against Public Opinion and explain why interest groups are controversial.

During photosynthesis, is used to break water down into oxygen and hydrogen.

What number is the arrow pointing to?

50 POINTS PLZ HELPHow do most cases reach the United States Supreme Court? A. with the approval of federal magistrate judges B. on appeal from a lower court via