14. -6m²-2m+1
15. 14x-24
16.3b²
17.14p+7
do you need the steps?
Step-by-step explanation:
cost of 1 kg of jam = x
cost of 1 kg of butter = y
3x + 2y = 29 .....1
6x + 3y = 54 .....2
.....1 × 2 both sides of equation
6x + 4y = 58 .....3
.....3 - ......2
y = 4
replace y = 4 in 1......
3x + 8 = 29
x = 7
Answer:
Step-by-step explanation:
Calculate the width
14:2=7
having given that the lenght is 14 in her slices too it means that she cuts it only in one direction so the width is
7:9=0.77777 (seven in period)
so she is pretty inacurate
