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kati45 [8]
3 years ago
5

connie sells lemonade for $0.25 per small cup and $0.75 per large cup. if she sells 20 small cups how many large ones must she s

ell to make $8.00
Mathematics
1 answer:
Nady [450]3 years ago
8 0

Answer:34

Step-by-step explanation:

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8,16,24,32,40,48,56,64,72,80,88,96,104,112,120,128,136,144,152,160,168,176,184,192,200,208,216,224,232,240,248,256,264,272,280,288,296,304,312,320,328,336,344,352,360,368,376,384,392 and so on are all multiples of 8 because 8 times a number=those two multiplied is one of those answers. Hope this helps.
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3 years ago
(7,7) and (59) slope =​
alina1380 [7]

Answer: -1 so -1x

Step-by-step explanation:

You use the y1-y2/x1-x2 formula. so 9-7 is 2 and 5-7 is -2 you you have 2/-2 that simplifes to be -1

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2 years ago
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The population of a community is known to increase at a rate proportional to the number of people present at time t. The initial
qaws [65]

Answer:

Step-by-step explanation:

Let P be the population of the community

So the population of a community increase at a rate proportional to the number of people present at a time

That is

\frac{dp}{dt} \propto p\\\\\frac{dp}{dt} =kp\\\\ [k \texttt {is constant}]\\\\\frac{dp}{dt} -kp =0

Solve this equation we get

p(t)=p_0e^{kt}---(1)

where p is the present population

p₀ is the initial population

If the  initial population as doubled in 5 years

that is time t = 5 years

We get

2p_o=p_oe^{5k}\\\\e^{5k}=2

Apply In on both side to get

Ine^{5k}=In2\\\\5k=In2\\\\k=\frac{In2}{5} \\\\\therefore k=\frac{In2}{5}

Substitute k=\frac{In2}{5}  in p(t)=p_oe^{kt} to get

\large \boxed {p(t)=p_oe^{\frac{In2}{5}t }}

Given that population of a community is 9000 at 3 years

substitute t = 3 in {p(t)=p_oe^{\frac{In2}{5}t }}

p(3)=p_oe^{3 (\frac{In2}{5}) }\\\\9000=p_oe^{3 (\frac{In2}{5}) }\\\\p_o=\frac{9000}{e^{3(\frac{In2}{5} )}} \\\\=5937.8

<h3>Therefore, the initial population is 5937.8</h3>
7 0
3 years ago
Given the directrix of y = 4 and focus of (0, 2), which is the equation of the parabola?
Anastaziya [24]

Answer:

b

Step-by-step explanation:

4 0
4 years ago
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What is the area of a circle with radius 13yd
Vadim26 [7]
The formula to find the area of a circle is 2 x r^2
so 2 x 13^2 = 338
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3 years ago
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