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Free_Kalibri [48]
3 years ago
5

I will give brainiest to whoever answers correctly !!

Mathematics
1 answer:
Semmy [17]3 years ago
4 0
$157.50 because if you use the simple interest formula (i=p*r*t), you get $157.50. Hope this helped with your homework!!
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tickets at a particular movie theatre have different rates for adults and children. on a friday the theatre sold 4 adult tickets
maria [59]
Using elimination method. Using substitution will cause some fraction problems.

c- child tickets
a- adult tickets

4a + 7c = $83
5a + 6c = $90

multiply by -5

-20a - 35c = -$415
20a + 24c = $360

-11c= -$55
c = $5 child tickets

4a + 7(5)= $83

4a + 35 = $83

4a = $48

a= $12 adult tickets

4 0
3 years ago
Pls awnser this question I will give brainliest pls
Makovka662 [10]

Answer:

My guess is G

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A bacteria culture starts with 12,000 bacteria and the number doubles every 50 minutes.
Vlada [557]

Answer:

a)  y=12000(2)^{\frac{t}{50}}

b)  Approx. 27,569 bacteria

c)  About 103 minutes

Step-by-step explanation:

a)

This will follow exponential modelling with form of equation shown below:

y=Ab^{\frac{t}{n}}

Where

A is the initial amount (here, 12000)

b is the growth factor (double, so growth factor is "2")

n is the number of minutes in which it doubles, so n = 50

Substituting, we get our formula:

y=Ab^{\frac{t}{n}}\\y=12000(2)^{\frac{t}{50}}

b)

To get number of bacteria after 1 hour, we have to plug in the time into "t" of the formula we wrote earlier.

Remember, t is in minutes, so

1 hour = 60 minutes

t = 60

Substituting, we get:

y=12000(2)^{\frac{t}{50}}\\y=12000(2)^{\frac{60}{50}}\\y=12000(2)^{\frac{6}{5}}\\y=27,568.76

The number of bacteria after 1 hour would approximate be <u>27,569 bacteria</u>

<u></u>

c)

To get TIME to go to 50,000 bacteria, we will substitute 50,000 into "y" of the equation and solve the equation using natural logarithms to get t. Shown below:

y=12000(2)^{\frac{t}{50}}\\50,000=12,000(2)^{\frac{t}{50}}\\4.17=2^{\frac{t}{50}}\\Ln(4.17)=Ln(2^{\frac{t}{50}})\\Ln(4.17)=\frac{t}{50}*Ln(2)\\\frac{t}{50}=\frac{Ln(4.17)}{Ln(2)}\\\frac{t}{50}=2.06\\t=103

After about 103 minutes, there will be 50,000 bacteria

4 0
3 years ago
The point A(-6, 8) has been transformed using the composition r(90,O) counterclockwise ∘Rx−axis . Where is A'?
Vikki [24]
A would now be a positive 6
7 0
2 years ago
A block of wood has a mass of 120g and a volume of 200cm3. What is the density of the wood?
ozzi
Density=mass/volume
given mass=120g and volume=200cm3
density=\frac{120g}{200cm^3}=\frac{3}{5} \space\ \frac{g}{cm^3} or abot 0.6


the density is 0.6 \space\ \frac{g}{cm^3}
3 0
3 years ago
Read 2 more answers
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