Question

HELPPP!!!!!!!

1. Which ordered pair is a solution to the system of linear equations 1/2x - 3/4 y= 11/60 and 2/5x +1/6y = 3/10
a. (1/5 , -2/3)
b. (1/5 , 2/3)
c. (2/3 , -1/5)
d. (2,3 , 1/5)

2. Suppose a system of two linear equations has one solution. What must be true about the graphs of the two equations?
a. They intersect at one point.
b. They intersect at two points.
c. They have the same slope.
d. They have the same y-intercept.

3. Which ordered pair is the solution to the system of linear equations -5x + y = 26 and 2x - 7y = 16

a. (-4 , 6)
b. (6 , -4)
c. (-4 , -6)
d. (-6 , -4)

Answer 1

Answer:

All I know is that for number 3 its d.

Step-by-step explanation:

-5 × (-6) = 30

(since if the signs are the answer will be positive)

30 + (-4) = 26

(since a number added with a negative one is the same as subtracting that number)

2 × (-6) = -12

(since the signs are opposite, the answer will be negative)

7 × (-4) = -28

(since the signs are opposite, the answer will be negative)

-12 - (-28) = 16

(since subtracting two negative numbers is the same as subtracting the bigger one of the two numbers with the smaller one)

Answer 2

Answer:

d

Step-by-step explanation:

i took the quiz soory if its not right but i know that it A