Answer:
4.8 servings
Step-by-step explanation:
What you do is you do 4/5x6/1 and you get 4.8 or 4 4/5.
Answer:
12 x 12 = 144
144 ÷ 12 = 12
Step-by-step explanation:
12 times 12 is 144 and the opposite of multiplication is division, the sum goes in front when you divide
M = (N-2)/N
M = N² - 2N
N² - 2N - M = 0
To find N we need to use quadratic formula.
For our equation x = N, a=1, b= -2, c= -M
One sub costs $4.5 and one cookie costs $0.75 or 75 cents
Step-by-step explanation:
Let s be the cost of one sub
and
c be the cost of one cookie
Then according to given statements
"The cost of 3 subs and 7 cookies is $18.75"
"Five subs and 21 cookies cost $38.25"
Multiplying eqn 1 by 3
Subtracting Eqn 2 from Eqn 3
Dividing both sides by 4
Putting s=4.5 in Eqn 1
Dividing both sides by 7
So,
One sub costs $4.5 and one cookie costs $0.75 or 75 cents
Keywords: Linear Equations, Variables
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