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solivagantjn3010
04.02.2020 •
Mathematics
3. the total cost for 8 bracelets, including shipping was $54. the shipping charge was $6. define your variable and write an equation that models the cost of each bracelet.
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Ответ:
8x= 48
x=6
i used x as a term for the bracelet so each bracelet is $6 with shipping
Ответ:
bracceletcost+6=54
minus 6
braceletcost=48
assuming that each bracelet cost the same
8b=48
divide both sides by 8
b=6
each costs $6
Ответ:
7, and 7√2
Step-by-step explanation:
The angle ratios are 1.5 : 1.5 : 3, so there are
1.5 + 1.5 + 3 = 6 total parts. There are 180° in a triangle, so we have
6x = 180
x = 30
Each part is 30°,
1.5 becomes 45° (30 plus half of 30)
3 becomes 90°
There are 2 angles with a ratio of 1.5, so we have a 45° - 45° - 90° triangle.
The side opposite the smallest angle is 7, there are angels with the least measure, so there are 2 sides that are 7.
The hypotenuse of a 45° - 45° - 90° triangle is larger than the legs by a factor of √2, so the hypotenuse is 7√2