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Arte-miy333 [17]
3 years ago
7

A pizza shop charged $49.57 for 3 large pepperoni pizzas. This price included a $2.50 delivery fee.

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
5 0
It will be $49.57 - $2.50 = $47.07
tia_tia [17]3 years ago
4 0

Answer:

$15.69

Step-by-step explanation:

Lets make an equation...

Let p = the price of one pizza.

$49.57 Divided by 3 = ?.

? = 16.523333333333_ Repeating.

Simplify it to 16.52.

16.52 is not an answer choice.

Solution:

Subtract the 2.50 by 49.57 to get 47.09.

Recreate the equation.

47.09 Divided by 3 = ?.

? = 15.693333333333_ Repeating.

Simplify it to 15.69.

p = 15.69.

Hope i helped!

-Snooky73hh

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3. acute angle is shown, 65° is missing.
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5. acute angle is shown, 42° is missing.
6. acute angle is shown, 100° is missing.
7 an obtuse angle and a acute angle are shown, 54° (for number 1) and 126° (for number 2) are missing.
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5 0
3 years ago
the half-life of chromium-51 is 38 days. If the sample contained 510 grams. How much would remain after 1 year?​
madam [21]

Answer:

About 0.6548 grams will be remaining.  

Step-by-step explanation:

We can write an exponential function to model the situation. The standard exponential function is:

f(t)=a(r)^t

The original sample contained 510 grams. So, a = 510.

Each half-life, the amount decreases by half. So, r = 1/2.

For t, since one half-life occurs every 38 days, we can substitute t/38 for t, where t is the time in days.

Therefore, our function is:

\displaystyle f(t)=510\Big(\frac{1}{2}\Big)^{t/38}

One year has 365 days.

Therefore, the amount remaining after one year will be:

\displaystyle f(365)=510\Big(\frac{1}{2}\Big)^{365/38}\approx0.6548

About 0.6548 grams will be remaining.  

Alternatively, we can use the standard exponential growth/decay function modeled by:

f(t)=Ce^{kt}

The starting sample is 510. So, C = 510.

After one half-life (38 days), the remaining amount will be 255. Therefore:

255=510e^{38k}

Solving for k:

\displaystyle \frac{1}{2}=e^{38k}\Rightarrow k=\frac{1}{38}\ln\Big(\frac{1}{2}\Big)

Thus, our function is:

f(t)=510e^{t\ln(.5)/38}

Then after one year or 365 days, the amount remaining will be about:

f(365)=510e^{365\ln(.5)/38}\approx 0.6548

5 0
2 years ago
How many miles will your parents drive in 8 hours if they are traveling 65 mph?​
neonofarm [45]

Answer:

520 miles

Step-by-step explanation:

6 0
3 years ago
If 2a+3b=12 and ab=6 find the value of 8a^3+27b^3
Alex17521 [72]
<span>A) 2a + 3b = 12
B) ab = 6 solving for a
B) a = 6 / b then we substitute this into equation A)
</span><span>A) 12 / b + 3b = 12  </span><span>multiplying this by "b"
A) 12 + 3b^2 = 12b
A) 3b^2 -12b +12= 0 dividing by "3"
A) b^2 -4b + 4 = 0
Factoring
(b-2) * (b-2) = 0
b = 2
Since b = 2 then a = 3

</span>NOW, we put these numbers into:
<span>8a^3 +27b^3 </span>
8*3*3*3 + 27*2*2*2
216 + 216
The answer is 512


6 0
3 years ago
Read 2 more answers
PLEASEEE HELP ME WITH THIS!!!
andreev551 [17]

Answer:

m∠H = 10°

Step-by-step explanation:

ΔFGH is an isosceles triangle. I made a diagram, so m∠F ≅ m∠H by B.A.T(base angle theorem). This is because an isosceles triangle have to congruent sides and angles.

Diagram is attached:

-Chetan K

7 0
2 years ago
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