Answer:
A, or 16 gallons
Step-by-step explanation:
First, you have to analyze what the function means. It tells you that x is the number of minutes in the shower, so now we have y=3(minutes in shower). Logically, 3 has to be gallons per minute so that the equation makes sense, since you're multiplying 3 by minutes in the shower. It also uses the same phrasing in the beginning of the problem when it says "A standard shower head in Jen's house dispenses 5 gallons of water per minute." Now, it's 3 gallons of water per minute (x). That means y has to be overall gallons. So, now the equations is overall gallons=3 gallons per minute. If she uses the shower for 8 minutes we can plug in for x. So now the equation is overall gallons=3 gallons times 8 minutes, or overall gallons=24 gallons. With the new shower head, 24 gallons is used. Now to find for the old shower head. 5 gallons per minute times 8 minutes = 40 gallons. Now we subtract to find out how many gallons Jen saves each day. 40-24=16. She saves 16 gallons.
Answer: 90 inches
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume of a rectangular prism =area of the base x length
Area of the base is the area of a triangle:
Area of a triangle = base x height x 1/2
Replacing with the values given:
A = 4 x 3 x 1/2 = 6 in2
Back on the volume formula:
V = A x h = 6 x 15 = 90 cubic inches
Feel free to ask for more if needed or if you did not understand something.
Answer:
Step-by-step explanation:
1/2(10x-8)=1/3(21-15x)
Opening the brackets
5x - 4 = 7 - 5x
5x + 5x = 7 + 4
10x = 11
x = 11/10
x = 1 1/10
Answer:
idrk but it think u multiply them easily
Step-by-step explanation:
Answer:
24/25
Step-by-step explanation:
I use the keep change flip method.
Keep the first fraction the same (leave it alone)
4/5 ÷ 5/6
Change the symbol from ÷ to ×
4/5 × 5/6
Flip the fraction (write its reciprocal)
4/5 × 6/5
Multiply across
