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enyata [817]
3 years ago
7

Three times a number equals 40 more than five times the number. What is the number

Mathematics
1 answer:
ipn [44]3 years ago
5 0
What’s the problem. It would help if you put you’re numbers down so I new what to multy
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The equation s=p(1+r)^t can be used to model a person’s future income. S = future salary, p = current salary, r = rate of increa
Ivan
P = 43,000
 r = 1.03
 t = 5
<span>s = p(1+r)^t
s = 43000(1.03)^5
s=</span>49,850
hope it helps
4 0
2 years ago
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HELP PLEASE!!!!!!!! ILL GIVE U 10 POINTS
aev [14]

Answer:

14% discount

Step-by-step explanation:

I was off by 2%

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3 years ago
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Ruth has a beaker containing a solution of 800 mL of acid and 200 mL of water. She thinks the solution is a little strong, so sh
Alexeev081 [22]

Answer:

Step-by-step explanation:

Ok so the beaker is 200 water:800 acid

So she drains 100 from the acid and 100 from the water which equals

100:700

Then she adds 200 water:

300:700

there is 300 mL water in da beaker now

i might got it wrong tho

5 0
3 years ago
If t = 18 and r = 12, find S. Round to the nearest tenth.
choli [55]

Answer: <em>S</em> ≈ 48.2°

Step-by-step explanation:

   We can use trigonometry functions to solve.

   Looking at angle <em>S</em>, t = 18 is the hypotenuse and r = 12 is the adjacent side. This means we can use the cosine function.

   \displaystyle cos(S) =  \frac{\text{adjacent side}}{\text{hypotenuse }}=\frac{12}{18}

  \displaystyle cos^{-1} (cos(S)) =  (\frac{\text{adjacent side}}{\text{hypotenuse }}=\frac{12}{18})cos^{-1}

  S = 48.189685...\\S  \;$\approx$\; 48.2^{\circ}

3 0
1 year ago
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(5x – 3y + 8) + (-3x + 6y - 3)​
Wewaii [24]

Answer:

2x+3y+5

Step-by-step explanation:

Firstly, we remove the parenthesis since there is nothing in front of it.

There is a “+” sign in front of the parenthesis, it stays the same.

Secondly, we combine like terms. We combine the x’s, the y’s, and the normal numbers without a variable.

Finally, after combining the like terms. You end up with “2x+3y+5”.

8 0
3 years ago
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