Subtract 2 from both sides
3x+2-2=5-2
3x=3
Divide both sides by 3
3x/3= 3/3
The answer is ×=1
Step-by-step explanation:
the general line equation format is
y = ax + b
a is the slope or gradient of the line. it is the ratio of "y coordinate change / x coordinate change".
b is the y-intercept, the y value when x = 0. we get this by putting one point into the equation and solve for b.
(i)
A (3, 5)
B (5, 9)
x changes by +2 (from 3 to 5).
y changes by +4 (from 5 to 9).
so, the slope (or gradient) is +4/+2 = 2
(ii)
the semi-finished equation is
y = 2x + b
let's use A to get b :
5 = 2×3 + b = 6 + b
b = -1
and the full equation is
y = 2x - 1
(iii)
for point (4, k) we get
k = 2×4 - 1 = 8 - 1 = 7
Answer:
2.5 hours
Step-by-step explanation:
4 - 1.5 = 2.5
You must subtract 1.5 from the amount of hours he plays piano, which is 4. This is because he spends 1.5 hours less playing drums than he does playing piano.
1. 4 boxes for 12.....12/4 = 3...paid 3 per box
if 6 were bought....6 * 3 = 18 bucks would be spent
2. 2/9 of 36..." of " means multiply
2/9 * 36 = 72/9 = 8 expected to forget their bows
3. 8 packs for 32.....32/8 = 4 per pack
if 14 packs were bought.....14 * 4 = 56 bucks would be spent
