Step-by-step explanation:
let our intercept be -7 let x1=-7 x2=o
y1= -7 and x2= 0 y1-y2/x1-x2
-7-0/-7-0
=1
Answer:
120 miles = 3 hrs
1 mile = 3/120 = 1/40
200 miles = 1/40 × 200
= 5 hrs
Q2.if we do unitary method
then..
50/25=0.5
1 apple cost 0.5
75=75*0.5 =rupee 37.5
The basic idea is that multiplying by 10 just moves the decimal point one place to the right. It makes the number bigger.
Examples:
3.1 x 10 = 31
3.1 x 10 x 10 = 31 x 10 = 310
Each time you multiply by another 10, the decimal point moves one more place.
In your exercise, says you're going to multiply by 10 <u>three</u> times in a row. So that will move the decimal point 3 places to the right.
So what do you get if you move the decimal in 4.25 three places to the right?
I pretty sure that it is 2. hope this was helpful to you!