Answer:
C
Step-by-step explanation:
switch 5 to the other part of the equation and do 5+3. Now you will have -2a=8 affectively -1a =4+
Answer:42
7 multiplied by 6= 42
let
(-7,-8) =(x1, y1)
and (-6,7)=(x2, y2)
by the formula
d=√(y2-y1) ²+(x2-x1) ²
=√(7+8)²+(-6+7)²
=√15²+1²
= √225+1
= √226
Answer: 63 cm squared
9*7=63
The easiest approach is to realise that one hour is 3 times longer than
20
minutes. The longer the time, the more they will pave.
2
15
of a mile, in 20 minutes, how much in 60 minutes?#
They will pave 3 times more.
×
3
1
=
6
of a mile
5
You could also use the 'unitary method' where you find out how much they pave in ONE minute (divide by
) and them multiply by
60
to find how much in one hour.
Look at what happens:
÷
←
exactly the same maths.
