Let's first write down the equations which we will require to solve for this problem.
Equation No. 1 -
x km/h = y mph
Equation No. 2 -
8 km/h = 5 mph
First of all, we will make y the subject by calculating the km/h when mph = 1. We will accomplish this by dividing both sides by 5 as displayed below:
Equation No. 2 -
8 km/h = 5 mph
5 mph = 8 km/h
5 / 5 mph = 8 / 5 km/h
1 mph = 8 / 5 km/h
Through this, we have found out:
m = 8 / 5
We will use the y = mx formula in order to obtain our final equation. We will substitute the value given in the second equation into the formula.
y = mx
y = ( 8 / 5 ) x
Answer:
20%
Step-by-step explanation:
To find out the percent decrease of the price of the lotion, the first step is to get the amount of the decrease in price.
The lotion is normally $3.00 for the bottle.
This week, it's at $2.40 for the same bottle.
The difference is then of $0.60 per bottle.
Now, we take that $0.60 and we divide it by the original price of $3, we get:
$0.60 / $3.00 = 0.20
So the special is a reduction of 20% from the original price of $3.00 per bottle.
Answer: 14
Step-by-step explanation: The distance from P to Q is 4, Q to R is 3, R to S is 4, and S to P is 3. So, we get 14.
Answer:(d): y=ax+b (a≠0); (d1)y=-4x+13
because of (d)⊥(d1) --> a.(-4)=-1 --> a=
(d): y=
+b. (d) pass through P(-1;-2) so we have
-2=(1/4).(-1)+b ---> b=
(d) y= 
