How much would a set of seven rocks cost if I paid $350 for 28 rocks

$87.50

Step-by-step explanation:

We can find the price by dividing 350 by 4, since 28 divided by 4 is 7.

350/4

= 87.5

So, a set of seven rocks would be $87.50

87.50

Step-by-step explanation:

We can use ratios to solve

28 rocks           7 rocks

  =

350 dollars        x dollars

Using cross products

28x = 350*7

Divide each side by 38

x = 350*7/28

x =87.5

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

21

jk it's 20

step-by-step explanation: