Answer
30
steps
area of trapizium is a+b/2 * h.
we have a=14, h=15, area=330 and we need to find b
so, 14+b/2 * 15=330
we divide 15 on both sides so 14+b/2=22
we multiply 2 on both sides so 14+b=44
b=44-14
b=30
10 boxes of paper at 6 lbs each = (10 * 6) = 60 lbs
36 boxes of pens at 12 oz each = (36 * 12) = 432 oz.
there are 16 oz in 1 lb....so 432 oz = (432/16) = 27 lbs.
so we have a total weight of (60 + 27) = 87 lbs
shipping charges : $ 12 for first 20 lbs, $ 10 for the next 30 lbs....so thats 50 lbs...leaving 37 lbs at 0.50 per lb = 37(0.50) = $ 18.50
for a total of : 12 + 10 + 18.50 = $ 40.50 <==
Answer:
10×10.70=$107 spent on cups
107-293=$186 spent on the jacket
so for the jackets 186= how many they got and much each cost.
u=186÷x
or 186=u the cost of each × x how many they got.
Your answer for 21. x = 4/5, b 19. n = -2/3, a
Answer:
201.14 , 502.85
Step-by-step explanation:
704/7 = 100.57
2*100.57 = 201.14
5*100.57 = 502.85
