4x -(9-3x) = 8x-1
4x -9 + 3x = 8x-1
7x-9 = 8x-1
-9 + 1 = 8x-7x
-8 = x
x = -8
Answer:
592
Step-by-step explanation:
A=2(wl+hl+hw)
A=2(8*10+12*10+12*8)=592
10. Not sure what the question is. Looks like it could be to write 9/5 in decimal form? In that case, we have 1/5 = 0.2, so 9/5 = 9*0.2 = 1.8
11. 
. If we round to 5 decimal places, the approximate value is 52.23232
12. By long division, we can show that 
. In repeated decimal notation, that's 
Answer: 10.25
Step-by-step explanation: 15-4.75=10.25
Petra Can use the 10.25 for the food.
Answer:
$787
Step-by-step explanation:
In terms of interest
To find the multiplier using '7% more' continues as follows
100% + 7% = 107%
107/100 = 1.07 (multiplier)
Add the ten years as a power to the multiplier
1.07^10
And multiply this by $400
400 x 1.07^10 = 786.860542916
To the nearest dollar = $787
