Answer:
15.2
Step-by-step explanation:
PiRsquared
Pi x 2.2²
Answer:
See below.
Step-by-step explanation:
Either 3 packets of 6 pens or
2 packets of 9 pens.
Solve the first equation for y.
3x+y=2
y=2-3x
Substitute
4x+(2-3x)=20
4x+2-3x=20
x=18
answer:
set 4
Step-by-step explanation:
because when you divide the numbers 12,16 and 20 by 2 you'll get 6,8 and 10 which is a Pythagoras family....and it will form a right angle triangle
The easiest way to do it is graph it and count.
