A] (-3,-2)
B] (-2,-3)
C] (0,4)
D] (4,0)
The ordered pair is (-2, -3)
Step-by-step explanation:
(-3, -2) ⇒ 7 × -3 - 5 × -2 = -21 + 10 = -11 ≠ 1
(-2, -3) ⇒ 7 × -2 - 5 × -3 = -14 + 15 = 1
(0, 4) ⇒ 0 - 5 × 4 = 20 ≠ 1
(4, 0) ⇒ 7 × 4 - 0 = 28 ≠ 1
So the ordered pair is (-2, -3)
The cost of three books are $4, $8 and $12.
The linear equations in one variable is an equation which is expressed in the form of ax + b = 0, where a and b are two integers, and x is a variable and has only one solution.
According to the given question
We have
Number of books purchased by Drew = 3
Total cost of the three books = $24
Cost of each book is multiple of 4.
Let the cost of three books be 4x, 8x and 12x.
So, we have
A linear equation in one variable
4x + 8x + 12x = 24
⇒ 24 x = 24
⇒ x = 1
Therefore, the cost of three books will be
4x = 4 × 1 = $4
8x = 8 × 1 = $8
12x = 12 × 1 = $12
Learn more about the linear equation in one variable here:
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how am i meant to know if i cant see?
Answer:
quick market
Step-by-step explanation:
quick market = $1.17/3 apples
this equals $0.39 per apple.
stop and save = $2.40/5 apples
this equals $0.48 per apple