Answer:
Step-by-step explanation:
<u>The first group consists of Petra and 4 friends, so the total number of members is 5, therefore the left side of equation should be:</u>
<u>The second group consists of 4 people, Valentina and 3 friends, therefore the right side of the equation should be</u>:
<u>Solving the equation to find the cost of a ticket for Petra's group:</u>
- 5(x + 5.5) = 4(1.5x + 4.75)
- 5x + 27.5 = 6x + 19
- 6x - 6x = 27.5 - 19
- x = 8.5
Cost of a ticket is $8.5
13.95 hours or 837 min
Step-by-step explanation:
1+ 4/5=9/5 7+3/4=31/4
9/5=1.8; 31/4=7.75
1.8×7.75=13.95 hours
13.95×60min=837min
(-2q^4/7)^4
<span><span><span><span> = (<span><span><span><span>−2/</span>7</span></span><span>q^4</span></span>)</span>* <span>(<span><span><span><span>−2/</span>7</span></span><span>q^4</span></span>)</span></span>* <span>(<span><span><span><span>−2/</span>7</span></span><span>q^4</span></span>)</span></span>* <span>(<span><span><span><span>−2/</span>7</span></span><span>q^4</span></span>)</span></span><span>
<span><span> <span> </span></span><span><span>
</span></span></span></span>= _16__ q^16
2401