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KingMack1136
06.11.2020 •
Mathematics
The cost of a banquet can be calculated using the function b=75+15n where b
represents the total cost and n represents the number of people attending. If the total
cost of the banquet is 130, how many people attended the banquet? (Round to the
nearest whole number)
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Ответ:
4 people were attending the banquet
Step-by-step explanation:
1 - Rewrite
b = 75 + 15n; b = 130
2 - Plug in and get n alone
130 = 75 + 15n
- 75 -75
55 = 15n ←↓ Divide both sides by 15
55/15 = n
4![3.6666... = n \\\4 = n](/tpl/images/0873/8942/3af67.png)
Hope this helps
Ответ:
2.5x + 60.5 = 540
2.5x = 540 - 60.5
2.5x = 479.5
x = 479.5/2.5
x = 191.8 <===
so ur angles are :
100 <==
x - 25 = 191.8 - 25 = 166.8 <==
1/2 = 0.50 <==
1/2x = 0.5(191.8) = 95.9 <==
x - 15 = 191.8 - 15 = 176.8 <==
check..100 + 166.8 + 0.50 + 95.9 + 176.8 = 540
540 = 540 (correct)