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dedylja [7]
3 years ago
14

Eva and her children went into a restaurant and where they sell hotdogs for $5 each and tacos for $2.50 each. Eva has $30 to spe

nd and must buy at least 7 hotdogs and tacos altogether. If Eva decided to buy 2 hotdogs, determine the maximum number of tacos that she could buy. If there are no possible solutions, submit an empty answer.
Mathematics
1 answer:
eimsori [14]3 years ago
3 0

2 hotdogs and 12 tacos

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3 Trig identities to be used:

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sin

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±

2

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.

Since cos x > 0 then

sin

x

=

2

√

5

.

(3) -->

sin

2

x

=

2

sin

x

.

cos

x

=

2

(

1

√

5

)

(

2

√

5

)

=

4

5

Answer link

4 0
3 years ago
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