The solution of the set of equation is
x=6.217
y=0.132
<u>Step-by-step explanation:</u>
given the set of equations
0.7x-y=4.22(1)
5-0.8x=0.2y
-0.8x-0.2y=-5 (2)
multiply (1) and(2) by 10
7x-10y=42.2(3)
-8x-2y=-50(4)
solve (3) and (4) using elimination method
⇒-40x-10y=-250(5)
(5)-(3)
-47x=-292.2
x=6.217
substituting value of x in 3
we get y=0.132
Answer:
Total=4 +3=7
For the 4
4÷7×70=£40
For the 3
3÷7×70=£30
So the division of £70 in ratio 4:3 is £40:£30
First, you have to calculate the sales tax by multiplying: $59.99 x .08 = about(rounding to the nearest hundredth) $4.80. After that, you add the price and tax together: $4.80 + $59.99 = $64.79. So $64.79 in the total cost of your video game.
Answer:
62.8 
; if you use 3.14 for pi
Step-by-step explanation:
The volume of a cylinder is v = 
is 3.14, the radius is 2, and the height is 5
3.14 times 2 squared times 5 is 62.8
