Answer:
easy
Step-by-step explanation:
subtract 3x both side
the answer is
-10 times- 5
Answer:
Step-by-step explanation:
185,000
Answer:
6
Step-by-step explanation:
3( 4x - 6)
Let x =2
3( 4*2 -6)
3(8-6)
3*2
6
Check
12x-18
12*2 -18
24-18
6
Both equal 6
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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