The substitution method means you replace the variable in one equation with the other equation, so your new equation is x+4x-8=10. Add 10 to both sides to get 5x=18. Divide both sides by 5 to get x=3.6. This is a weird equation, but then to get y, work backwords. 3.6 times 2=7.2. 7.2-4=3.2 y=3.2. Finally to finish checking solve the equation as normal. 3.6+6.4=10. I hope this helped! Please give brainliest!
Your final answer is x=3.6 y=3.2
The answer would be £480 because 20% of 600 is 120 and 600 take away 120 is 480
Step-by-step explanation:
Use the Pythagorean theorem:

We have

Substitute:

<em>subtract 16 from both sides</em>


Substitute:


Answer:
10 miles per minute
Step-by-step explanation:
distance = speed x time
but we are working out the speed, so it is speed = distance/ time
it takes 12 minutes, so we do 120/ 12 which gives us 10
Let, the number = x
x * 125 / 100 = 264
x = 264*100 / 125
x = 26400/125
x = 211.2
So, that number & your final answer is 211.2
Hope this helps!