dele82 dele82
  • 03-09-2019
  • Mathematics
contestada

4.
Solve the shape equation puzzle:
A+ A+ A+ B+ B=20
B+ A+ A=13

Respuesta :

nsadeghiofficial nsadeghiofficial
  • 03-09-2019

3A+2B=20

2A+B=13 ➡×(-2)➡-4A-2B=-26

3A+2B-4A-2B=20-26

-A=-6 ➡A=6

2(6)+B=13➡B=1

Answer Link
Аноним Аноним
  • 03-09-2019

Answer:

A = 6, B = 1.

Step-by-step explanation:

3A + 2B = 20

2A + B = 13          Multiply this by -2:

-4A - 2B = -26     Add this equation to the first equation:

-A = -6

A = 6.

and from the second equation:

2(6) + B = 13

B = 13 - 12 = 1.

Answer Link

Otras preguntas

Maintain accurate records relating to children's overall welfare in early years
It is against the law to follow within _____ feet of any emergency vehicle which is answering an emergency call. 300 400 500 600
A rectangular bathroom mirror is 4 feet tall and 7 feet wide. What is its area? square feet
What is the surface area? 5 cm 7 cm 4 cm square centimeters ​
.325 equals what fraction
Find the volume of the given prism.Ans:60cm^3​
What is the refusal to buy something called?
¿Que es la Acuicultura?​
A type of pricing strategy we’re in the same product being sold at a different place but have different price
Please solve the first three question with explanation ​