Answer:
600
Step-by-step explanation:
Given parameters:
Number that rode in columns = times the number that rode in rows.
2200 rode in columns
Unknown:
Number of people that rode in rows = ?
Solution:
Let the number of people that rode in columns = C
Let the number of people that rode in rows = R
C = R
Number of people that rode in rows = 2200;
2200 = R
11R = 2200 x 3
R =
R = 200 x 3
R = 600
Number of people that rode in rows = 600
Answer:
x = 4
Step-by-step explanation:
y = kx²
NOTE: k is constant for proportionality
putting values for x and y
if x is 2
and y is 12
12 = k(2)²
12 = k4
12 = 4k
divide both sides by coefficient of k
12÷4 = 4k ÷ 4
k=3
substitute 3 for k
therefore when
y is 48
and k is constant 3
then x will be:
48=3x²
divide both sides by coefficient of x²
48 divide by 3 = 3x² divide by 3
16=x²
take the square root of both sides
√16 = √x²
x = 4
They are equal to one another because 4(3+x) can be rewritten using the distributive property as 4(3)+4x or 3+3+3+3+x+x+x+x
Answer:
y = -1
Step-by-step explanation:
hopefully it helped
tax gets added to the price of the camera
so the equation is:
x + 0.07x = 45; x = $42.06