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adell [148]
3 years ago
5

Can someone please please help me I’ll give brainiest

Mathematics
2 answers:
Vesnalui [34]3 years ago
7 0
$6.70 + $1.95 + $2.35 = $11
4.5% sales tax is $0.50 so $11 + $0.50 = $11.50
$11.50 + $2.00 tip = $13.05
sveticcg [70]3 years ago
6 0

Answer:

$13.50

Step-by-step explanation:

So excluding tax and tip, let's find the cost of the meal.

$6.70 + $1.95 + $2.35 =  $11.00

Now let's add the 4.5% tax. We do this by adding 4.5% of 11.00 to 11.00

$11.00 + 0.045($11.00) = $11.495 which rounds to 11.50

Now the tip is 2 dollars, so add 2 to 11.50 to get $13.50

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Priscilla invests $10,000 in an account that compounds interest continuously and earns 11%. How long will it take for her money
Shkiper50 [21]

Answer:

Step-by-step explanation:

When the interest compounds continuously, our formula is

A(t)=Pe^{rt}

If we start with 10000 and are looking for how long, t, it takes to double, we are looking for how long it will take for our account to have 2 times 10000.  That's 20000.  Therefore, our equation is

20000=10000e^{.11t}

Divide both sides by 10000 to get

2=e^{.11t}

Take the natural log of both sides to "undo" that e:

ln(2)=ln(e^{.11t})

Again, since ln and e undo each other what we have now is

ln(2) = .11t and

\frac{ln(2)}{.11}=t so

t = 6.3 years

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3 years ago
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Ivenika [448]

Answer:

$23.85

Step-by-step explanation:

39.95 x 3 which can also be 39.95 + 39.95 + 39.95=119.85

So then do 143.70-119.85 to find the answer which is 23.85.

8 0
3 years ago
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