3t – 4(t – 5) + 5 for t=6. 2

Mathematics

2 answers:

Trava [24]3 years ago

5 0

Answer:

t = 18.8

Step-by-step explanation:

Hope this helped

please mar Brainliest

podryga [215]3 years ago

3 0

Answer:

18.8

Step-by-step explanation:

3t - 4(t - 5) + 5 (plug in 6.2 as t)

3(6.2) - 4(6.2 - 5) + 5 (distribute 3 to 6.2)(subtract 5 from 6.2)

18.6 - 4(1.2) + 5 (multiply -4 and 1.2)

18.6 - 4.8 + 5 (subtract 4.8 from 18.6)

13.8 + 5 (add 13.8 and 5)

18.8

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Answer:

Step-by-step explanation:

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Maksim231197 [3]

Answer:

See explanation

Step-by-step explanation:

Let $x,\ x\ge 0$ be the number of students and $y,\ y\ge 0$ be the number of adults on the show.

1. Tickets cost $15 for students, so x student tickets cost $15x.

Tickets cost $25 for adults, so y adult tickets cost $25y.

Total cost of all tickets is $(15x + 25y).

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$15x+25y\ge 3,750$

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$x+y\le 180$

3. We get the system of inequalities:

$\left\{\begin{array}{l}x\ge 0\\y\ge 0\\x+y\le 180\\15x+25y\ge 3,750\end{array}\right.$

Plot all solutions sets to each inequality and the common region is the solution set to the system of inequalities. This region is not empty, so the charity will reach its goal. For example, if they sell 50 students tickets and 125 adult tickets, they will raise $\$(15\cdot 50+25\cdot 125)=\$3,875$