Question

THIS IS AN EMERGENCY!! YOU GET ALL MY POINTS (AKA 15 I know I'm poor)!!
A recipe that serves two people calls for 1,800 milligrams of baking powder. You want to make enough for 10 people. How many grams of baking powder will you​ need? Write an equation to show your work.

Answer 1

Answer:

9 grams

Step-by-step explanation:

We can use these equations:

y = ax

• Where y is the total amount of baking soda (in mg)
• Where a is the number of servings
• Where x is the amount of baking soda in one single serving (in mg)

Here we know that y = 1800 and a = 2, so we will need to solve for x

• Solving for x we get $x= \frac{y}{a}$ and plugging in our known values we get $x = \frac{1800}{2}$ and this simplifies to 900
• This means one serving contains 900 mg of baking soda

We can now change the equation to solve for the total amount of baking soda required to serve 10 people

• We know that a = 10 and x = 900
• The equation is already solved for y, so plugging in our new values we have y = (10)(900) = 9000 mg
• The recipe will require 9000 mg in order to serve 10 people

Now there are 1000 mg in 1 g, so converting mg to g we have 9000 mg is equivalent to 9 grams