!!!!SORRY I DIDNT MEAN TO SET IT TO COLLEGE, THIS IS 6th/7th grade!!!!!

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

5 0

Answer:

C) Jo's drink will have a stronger orange taste

Step-by-step explanation:

tropical punch calls for 2 liters of pineapple juice and 3 liters of orange juice.

total is 2+3 = 5 liters

pineapple = 2/5

orange = 3/5

Jo creates a drink by mixing 3 liters of pineapple juice with 4

total = 7

pineapple = 3/7

orange = 4/7

Get a common denominator to compare

5 and 7 = 35

tropical punch

pineapple = 2/5 *7/7 = 14/35

orange = 3/5*7/7 = 21/35

pineapple = 3/7*5/5 = 15/35

orange = 4/7*5/5 = 28/35

Jo will have both a stronger pineapple and orange taste than the tropical drink and the orange will be stronger than the pineapple in her drink

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Given vectors u = (-3,2) and v = (4,-1), if vector w=2u -3v, what is ||w|| ?

Brums [2.3K]

$\bf \begin{cases}
u=\ \textless \ -3,2\ \textgreater \ \\
2u=2\ \textless \ -3,2\ \textgreater \ \\
\qquad \ \textless \ 2\cdot -3,2\cdot 2\ \textgreater \ \\
\qquad \boxed{\ \textless \ -6,4\ \textgreater \ }\\
----------\\
v=\ \textless \ 4,-1\ \textgreater \ \\
3v=3\ \textless \ 4,-1\ \textgreater \ \\
\qquad \ \textless \ 3\cdot 4,3\cdot -1\ \textgreater \ \\
\qquad \boxed{\ \textless \ 12,-3\ \textgreater \ }
\end{cases}\qquad
\begin{array}{llll}
w=2u-3v\\\\
w=\ \textless \ -6,4\ \textgreater \ -\ \textless \ 12,-3\ \textgreater \ \\\\
w=\ \textless \ -6-12,4-(-3)\ \textgreater \ \\\\
w=\ \textless \ -18,4+3\ \textgreater \ \\\\
\boxed{w=\ \textless \ -18,7\ \textgreater \ }
\end{array}
\\\\\\
||w||\implies \sqrt{a^2+b^2}\implies ||w||=\sqrt{(-18)^2+(7)^2}\implies ||w||=373$