Graciana sold 36 books at £5.20 each, 26 candles at £1.50 each and some pencils at 90p each. She got a total of £244.20. How many pencils did Graciana sell?

20 pencils

Step-by-step explanation:

36*£5.20 = £187.20

26*£1.50 = £39

£187.20+£39 = £226.2

£244.20 - £226.2 = £18

£18÷£0.90 = 20

been looking for the answer havent been able to find it   but good luck with it

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3