Answer:
A proportional relationship between a quantity y and a quantity x that has a constant of proportionality k is represented by the equation y = kx.
Step-by-step explanation:
Can you please help me Can you do plsssssss Help me
-4
0.9
sqrt 85 = 9.219
11
4(pi) = 4(3.14) = 12.56
least to greatest : -4, 0.9, sqrt 85, 11, 4(pi)
lol...there already in order...just like u posted them
They payed $31.20 for both you multiply $0.47 times 13.24 and the equal 26.22 and then you do $0.47 times 10.6 and that equals 4.98 and then you do 4.98+26.22= 31.20 or 31.2 is the same thing
Emma:
Number of hours = 4
Total cost = 18
Where x is the cost per hour n and y is the flat fee
18 = 4x + y
Louise:
number of hours = 7
total cost = 25.50
25.50 = 7x + y
We have the system of equation:
18 = 4x + y
25.50 = 7x + y
Solve the first equation for y
18-4x = y
y = 18-4x
Replace y on the second equation; and solve for x
25.50 = 7x + (18-4x)
25.50 = 7x + 18 -4x
25.50 = 3x + 18
25.50 - 18 = 3x
7.5 = 3x
7.5/3 = x
2.5 = x
a. Cost per hour = $2.5
Now, replace x on any equation and solve for y
18 = 4x + y
18 = 4 (2.5) + y
18 = 10 +y
18 - 10 = y
8 = y
b. Flat fee = $8
c. Use the equation:
Cost = flat fee + cost per hourx (number of hour)
Cost = 8 + 2.5 (2)
Cost = 8 + 5 = $13
