Answer:
x = 911.25
Step-by-step explanation:
let the number be x
by putting the word problem in equation, we get :
- 80/100 × x = 135/100 ×540
- 4/5 × x = 135/10 × 54
- x = 135/10 × 54 × 5/4
- x = 911.25
the length of the fish tank is
. Correct option is A)
<u>Step-by-step explanation:</u>
Here we have , Peter has just purchased a small rectangular fish tank that holds 910 milliliters of water. The tank has a width of 7 cm and a height of 10 cm. We need to find What is the length of the fish tank . Let's find out:
The fish tank is in the shape of cuboid , and we know that volume of cuboid :
⇒ 
Now , according to question we have following parameters :

Therefore , Putting theses values in above equation we get :
⇒ 
⇒ 
⇒ 
⇒ 
Therefore , the length of the fish tank is
. Correct option is A)
You're not dumb! The best and effective way to solve this problem is to isolate the y variable. Divide the whole thing by 150, and you get y=10-1/2x
And then you just add f(x) instead of y to get f(x)=10-1/2x as your final answer.
The starting value is 2 and the equation also of the line is y=2/5x+2