Answer:
x = 4
Explanation:
3x - 4y = 36
5x + 2y = 8 ( multiply all by two )
3x - 4y = 36
10x + 4y = 16
13x = 52
Divide by 13
x = 4 hope this helps
Answer:
Pic is not working sorry. :(
Step-by-step explanation:
For perpendicular lines, m1m2 = -1 or m2 = -1/m1; where m1 and m2 are the slopes of the lines.
Here line 1 is 2x - y - 7 = 0
y = 2x - 7; Hence m1 = 2
m2 = -1/2
Required equation y - y1 = m2(x - x1)
y - (-1) = -1/2(x - 4)
y + 1 = -1/2x + 2
y = -1/2x + 2 - 1
y = -1/2x + 1
Answer:
in 25 weeks the stalk grew to 4 inches - false
the stalk grew to a height of 25 inches in 4 weeks - true
each bag can hold 25 cornstalks - cannot be determined
the stalk grew at a rate of 6.25 inches each week - true (25/4 = 6.25)
the quotient 25/4 equals the growth rate of the stalks each week - true
