Answer:
x=2; y=1
Step-by-step explanation:
Since the triangle is equilateral, which means three sides have the same length.
So we have：4x-y=2x+3y=7
Since 2x+3y=7 and plug in x=2y
we have
and since y=1
x=2
1 a. A cube has an edge length of 4.3 meters. What is the volume of the cube?
1 answer:
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If both pipes are opened. Then the number of hours to fill up the tank fully is 100 hours.
The complete question is attached below.
<h3>What are ratio and proportion?</h3>A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.
Let t be the filling time.
Then we have
Time is inversely proportional to rate of filling tank.
1/20 – 1/25 = 1/t
0.05 - 0.04 = 1/t
0.01 = 1/t
t = 1/0.01
t = 100 hours
More about the ratio and the proportion link is given below.
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