Answer:
2. Cecilia uses 3 cups of flour for 36 cookies
4. Cecilia is making 3/4 of the original recipe
Step-by-step explanation:
Recipe for 48 cookies
Flour = 4 cups
Sugar = 1 1/3 cups
Recipe for 36 cookies
48 cookies : 36 cookies
= 4 : 3
Flour used in 36 cookies = x cups
Flour used in 48 cookies = 4 cups
4 cups : x cups
4 : 3 = 4 : x
4/3 = 4/x
4*x = 3*4
4x = 12
x = 12/4
x = 3 cups
Sugar = 1 1/3 cups
Sugar used in 36 cookies = y cups
Sugar used in 48 cookies = 1 1/3 cups
4 : 3 = 1 1/3 : y
4/3 = 4/3 ÷ y
4/3 = 4/3 × 1/y
4/3 = 4/3y
4*3y = 3*3
12y = 9
y = 9/12
= 3/4
y = 3/4
The true statement are:
2. Cecilia uses 3 cups of flour for 36 cookies
4. Cecilia is making 3/4 of the original recipe
Answer:
16
Step-by-step explanation:
substitute the values into the equation
9(4)+4(-5)
solve...
36-20=16
Answer:
16.75
Step-by-step explanation:
add all the numbers up then divide by how many numbers there is
Find factors of 12 and 21
Divide 3 from both numerator and denominator.
(12/21)/(3/3) = 4/7
4/7 is your ratio equivalent to 12/21
hope this helps
Answer:
9 gallons/minute
Step-by-step explanation:
Since you are trying to find gallons/min, there are two ways you can go about this. Either find a common factor between the 2 number, or you can simply to divide 423 by 47. Thankfully in this situation, you can find the answer easily either way because 47 is a factor of 423.
Factor out 47:
423 gallons/47 minutes
47*9 gallons/47*1 minutes
Simplify:
9 gallons/minute
