I am going to assume these are points across the same line. (line segments)
If so, then jk + kl = jl
If jk is 6x and kl is 3x, we can solve for x.
6x + 3x = 27 (note we subbed 27 in for jl)
9x = 27 (divide both sides by 9 to leave on x on the left)
x = 3
CHECK! sub 3 in for x in the original problem.
6 (3) + 3 (3) = 27
18 + 9 = 27
Yes! It checks. x = 3
<span>It costs $7.00 to play a straightforward game in which a dealer gives you one card from a deck of 52 cards. </span><span>
</span><span>
If the card is a heart, spade, or diamond, you lose. </span><span>
</span><span>
If the card is a club other than the queen of clubs, you win $11.50. </span><span>
</span><span>
If the card is the queen of clubs, you win $50.00. </span><span>
</span><span>
The random variable x represents your net gain from playing this game once, or your winnings minus the cost to play. What is the mean of x, rounded to the nearest penny?</span><span>
</span><span>
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Random "winnings"::.....-7.......4.50......43</span><span>
</span><span>
Probabilities::........ 39/52....12/52....1/52 </span><span>
</span><span>
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</span><span>
u(x) = [39*-7 + 12*4.5 + 43]/52 = -$3.38
</span>
Answer:
C: b=4
B: n= -2
A:-5
A: -2
Step-by-step explanation:
hope this helps sorry if any one of these is incorrect have a good rest of your day :) ❤
