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Karo-lina-s [1.5K]
3 years ago
9

Giving out braliest (idek if I spelt it right lol-)

Mathematics
2 answers:
-BARSIC- [3]3 years ago
7 0

Answer: 15

Step-by-step explanation:

The ratio shown is 1:3. So the same must hold true if a given value were 5. 5*3=15, so the answer is 15.

Nataly [62]3 years ago
6 0

Answer:

15

Step-by-step explanation:

6/2 = 3 minutes per lap

5 * 3 = 15

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4 years ago
3y+10x-54=0 5y-2x-34=0<br><br> x=<br><br> y=
Blababa [14]
<h3>Answer:</h3><h2>x = 3 and y = 8 → (3, 8)</h2><h3>Step-by-step explanation:</h3>

\left\{\begin{array}{ccc}3y+10x-54=0&\text{add 54 to both sides}\\5y-2x-34=0&\text{add 34 to both sides}\end{array}\right\\\left\{\begin{array}{ccc}3y+10x=54\\5y-2x=34&\text{multiply both sides by 5}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}3y+10x=54\\25y-10x=170\end{array}\right}\ \ \ \ |\text{add both sides of the equations}\\.\ \ \ \ \ 28y=224\qquad\text{divide both sides by 28}\\.\ \ \ \ \ \ \ \dfrac{28y}{28}=\dfrac{224}{28}\\.\ \ \ \ \ \ \ \boxed{y=8}

\text{put the value of y to the first equation}\\\\3(8)+10x=54\\24+10x=54\qquad\text{subtract 24 from both sides}\\24-24+10x=54-24\\10x=30\qquad\text{divide both sides by 10}\\\dfrac{10x}{10}=\dfrac{30}{10}\\\boxed{x=3}

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Find the sum of the infinite geometric series.<br> 500 + 400 + 320 + 256 +..
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Step-by-step explanation:

8 0
4 years ago
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