Solve : 11 (9-v)=0 a) -9 b) 9 c) 99 d)-99
2 answers:
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4 liters of punch can serve 16.
5 liters of punch will be needed for 20 servings.
7 liters of punch will serve 28.
Step-by-step explanation:
Given,
Ratios of liters of punch to servings = 2:8
Let,
x be the servings for 4 liters.
New ratio of liters of punch to servings = 4:x
Using proportion;
Ratio :: New ratio
Product of mean = Product of extreme
Dividing both sides by 2
4 liters of punch can serve 16.
Let,
y be the liters of punch for 20 servings.
New ratio = y:20
Using proportion;
Product of mean = Product of extreme
Dividing both sides by 8
y=5
5 liters of punch will be needed for 20 servings.
Let,
z be the number of servings for 7 liters of punch.
New ratio = 7:z
Using proportion
Product of mean = Product of extreme
Dividing both sides by 2
7 liters of punch will serve 28.
Keywords: ratio, proportion
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Well, the formula for simple interest is
"I" is interest, "p" is the principal, "r" is the rate, and "t" is the time.
If you substitute the numbers, you get
When you multiply them together, you get
So, the simple interest for 3.5 years is $210.
But, in order to get the total balance, you have to add the interest and the principal together.
So, the balance after 3.5 years is $1,210.
"I" is interest, "p" is the principal, "r" is the rate, and "t" is the time.
If you substitute the numbers, you get
When you multiply them together, you get
So, the simple interest for 3.5 years is $210.
But, in order to get the total balance, you have to add the interest and the principal together.
So, the balance after 3.5 years is $1,210.