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Crank
4 years ago
7

PLEASE HELP !!

Mathematics
1 answer:
Soloha48 [4]4 years ago
4 0

Answer:

C. 15

Step-by-step explanation:

Given:

$4x + 2y = 50  \hspace{18mm} (1)  \hspace{15mm} x - 3y = 30 \hspace{20mm} (2) $

Dividing Eqn. (1) thorough out by 2, we get $ 2x + y = 25  \hspace{15mm} (3) $

To solve for $x$, multiply (3) by 3 and add (2) and (3).

i.e., $ 6x + 3y - 75 + x - 3y - 30 = 0 $

$ \implies 7x = 105 $

$ \implies x = 15 $

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Answer:

47 rounds and Eve wins.

Step-by-step explanation:

If read right, the highest player, (player with the most tokens) has to lose 3 tokens each round, so starting off with Evelyn, 17 - 3 = 14, and the other two each have +1 added to them, so, E=14, A=17 V=16, now subtract three from A (Amelia) and don't forget that one token is always being discarded each round. So the toal number of tokens at the start was 48, (17 + 16 + 15) so right now the total tokens should be 47, which it is. now starting the second round, A gives up 3 tokens so, 17 -3, again equals 14 and each of the two other players get one token, so E=15, A=14 V=17. Now you know the general trend, so we can figure this out seeing that after each round the number of tokens decrease by one, so there will be a round till all tokens are out except one, so there will be 47 rounds and since E started with the highest number they will win.

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3 years ago
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Ksivusya [100]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Please someone help me out. I beggggg
bezimeni [28]

Answer:

1.  144  2. 16 3. 1   4. 3x-6  

Step-by-step explanation:

So think of this as a function in a function.  So you work from the inside to the outside.  So for problem 1, we start with f(4)) [you read it "f of 4"] so what is the solution when x = 4, since f(x) means the function of x so f(4) means 'the function of 4' inside f(x).  

Since f(x) = 3x then f(4) = 3(4) [notice how you substitute the 4 everywhere you see a letter x]

so f(4) = 12, now you work the next part h(f(4)) since f(4)=12 then h(12)

So take the h(x) function which is h(x) = x^{2} then h(12) = 12^{2} so h(12) = 144

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3 years ago
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Step-by-step explanation:

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3 years ago
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