Answer:
x = - 4, y = 7
Step-by-step explanation:
Given the 2 equations
- 7x - 2y = 14 → (1)
6x + 6y = 18 → (2)
Multiplying (1) by 3 and adding to (2) will eliminate the y- term
- 21x - 6y = 42 → (3)
Add (2) and (3) term by term to eliminate y
- 15x = 60 ( divide both sides by 15 )
x = - 4
Substitute x = - 4 into either of the 2 equations and evaluate for y
Substituting into (2)
6(- 4) + 6y = 18
- 24 + 6y = 18 ( add 24 to both sides )
6y = 42 ( divide both sides by 6 )
y = 7
Answer:
100 has <u>5</u> factor pairs, so that many different rectangles can be drawn. 15 only has <u>2</u> factor pairs, so only that many different rectangles can be drawn.
Explanation:
there are 5 pairs of whole numbers that multiplied together will be 100:
- 100 x 1 = 100
- 50 x 2 = 100
- 25 x 4 = 100
- 20 x 5 = 100
- 10 x 10 = 100
while there are only 2 pairs of whole numbers that multiplied together will be 15:
- 15 x 1 = 15
- 3 x 5 = 15
Answer:
2.375 or 2 3/8
Step-by-step explanation:
You want to do total weight over total number of items.
14 1/4 / 6 books = 2.375
Answer:
- 1/3
Step-by-step explanation:
Answer:
m=-2/3 b=-3
Step-by-step explanation:
