Answer:
Step-by-step explanation:
1. A + B
2. 9 + u - 10
3. m - 2 / 2
Step-by-step explanation:
Pressure = Force / Area
= 64N / 3.2m² = 20Pa. (2s.f.)
Answer:
Any number ending in 3 or 8 that is greater than 18
Step-by-step explanation:
For example, 18,23,28,33,38,etc
To answer this, you should "subtract" x+y=7 from 3x+y=45.
What is left is 2x=38, where x then equals 19.
Plug this value into any of the equations (I will choose x+y=7 for simplicity).
19+y=7, y=-12
Check this answer by plugging it into the other equation.
3(19) + (-12) =45
45=45 so it is correct
X=19 and Y=-12
Cris is 15 it’s actually quite easy