If y varies directly with x, and y = 10 when x = 4, write the direct linear variation equation a. y = 10x b. y = 4x c. y = 5/2 d. y = 2/5

Step-by-step explanation:

Given,

y varies directly with x,

I.e.

Where,

k = constant of proportionality,

We have,

y = 10 when x = 4

From equation (1),

Again from equation (1),

Which is the required direct linear variation equation.

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

3/6   and 9/18

step-by-step explanation: