4-1= 3
3-4= -1 slope= -3
y-4=-3(x-3)
y-4=-3x+9
y=-3x +13
Answer:
C
D
E
Step-by-step explanation:
Answer:
2 x + 6 . 8 = 8 x + I . 4
8x _2x = 6.8 - 1.4
6x = 5.4
X= 0.9
2x+ 6-8= 2×0.9 + 6.8 =8.6
Answer: £20.
Step-by-step explanation:
Let the old price = £x
Percent increase. = 10%
Increment. = 10% of £x
= 10x/100
Now new price = £22
To determine the old price we have
x + 10x/100. = 22
We now multiply everything by 100 to make it a linear expression
100x + 10x = 2200
110x = 2200, therefore
x. = 2200/110
= £20
Therefore, the price before the increase. = £20.
