Answer:
Step-by-step explanation:
a+b+c=68
b-3=a
c-5=b
now just solve the system of equations, substitue so that there are only b's in the equation:
a+b+c=68
(b-3) + b + (b+5) = 68
3b=66
b=22
Therefore Barbara is 22
Let's simplify ~
Therefore, A is the Correct choice !
Answer:
The ratio of the amount of flour to the amount of buttermilk=99:1
Step-by-step explanation:
Step 1: Determine quantity for each recipe
Quantity of flour=66 cups
Quantity of buttermilk=2/3 cups
Step 2: Calculate the total quantity of recipe
The expression for the total quantity is;
T=f+b
where;
T=total quantity of recipe
f=quantity of flour
b=quantity of buttermilk
In our case;
T=unknown
f=66 cups
b=2/3 cups
replacing;
T=(66)+(2/3)=66 2/3 cups
Step 3: Determine fraction of each
fraction of buttermilk=(2/3)/(66 2/3)=1/100
fraction of flour=66/(66 2/3)=99/100
Step 4: Determine ratio of flour to buttermilk
Amount of flour:amount of buttermilk
(99/100):(1/100)
The ratio of the amount of flour to the amount of buttermilk=99:1
Answer:
(((x-4)/2)^3)+3=y
Step-by-step explanation:
You just have to switch the y and the x and then isolate the y
