I'm confuzzled. You want me to write an essay for you or..?
Answer:
25 minutes
Explanation:
Let us analyse the problem carefully;
In aquarium 1, the rate volume of water is increasing at a rate of 1.2 gallons per minute. If we are to plot this into a straight line graph, we will plot the volume at each time (y) against the time (x) with the initial volume water in each aquarium as the constant in each case. The rate of increase or decrease of water is the slope of the graph (m). Recall that the equation of a straight line graph is y=mx + c
For Aquarium 1
y= 1.2x + 4.6 Equation 1
For Aquarium 2
y= -0.8x + 54.6 Equation 2
For aquarium 2, since the volume is decreasing, the slope is negative
The time at which both aquariums will contain the same volume of water is obtained by equating equations 1 and 2 above;
1.2x + 4.6= -0.8x + 54.6
1.2x + 0.8x = 54.6 - 4.6
2x = 50
x = 50/2
x= 25 minutes
Answer: I need clarification
Explanation:
Answer:
A & C
Explanation:
cracked and broken mean almost the same thing; the other ones do not :) hope this helped
Set kim's age to 2x. Set her sister's age to x. Now solve the equation:
2x+x=36
3x=36
x=12.
Remember, her sister's age was x, and x=12, so her sister is twelve. Kim's age is 12*2, so her age is 24.