Answer:
-2/3x+9
Step-by-step explanation:
The angle is in the third quadrant.
y = -7.3x + 39.7
The first thing we must do for this case is to make use of the given equation and replace the value of y:
17.8 = -7.3x + 39.7
Now we clear x:
7.3x = 39.7-17.8
x = (39.7-17.8) / (7.3)
x = 3
Answer:
the tub will have 17.8 gallons of water remaining after 3 minutes
Answer:
Step-by-step explanation:
Step 1: We make the assumption that 160 is 100% since it is our output value.
Step 2: We next represent the value we seek with x.
Step 3: From step 1, it follows that 100%=160
Step 4: In the same vein, = x%=140.
Step 5: This gives us a pair of simple equations:
100%=160(1).
x%=140(2).
Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have
100% / x% = 160 / 140
Step 7: Taking the inverse (or reciprocal) of both sides yields
x% / 100% = 140 / 160
x% = 87.5%
therefore, 140 is 87.5% of 160
