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olga2289 [7]
4 years ago
11

In brainly if you answered 50 questions a day and the all gave you 10 points and you did this for 2 consecutive years and you ea

rned brainliest once a day how long would i take you to reach the highest rank?
Mathematics
2 answers:
vova2212 [387]4 years ago
7 0

Answer:

50 questions x 10 points = 500 points

500 points x 2 years = <u>1000 points</u>

365 days / 2 = 182 1/2 days

182 1/2 days x 2 years = <u>365 days</u>

amm18124 years ago
3 0

Answer:

2 years

Step-by-step explanation:

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9+(6w+3w) how do I do this it is to hardThe expression (9+6w)+3w
Mama L [17]

Answer: 9w+9

Step-by-step explanation:

First combine like terms: 6w+3w

You can't combine 9 and 9w so that would be your answer.

Then if it calls for it, use the commutitive property to move 9w before 9.

Hope this helps!

6 0
3 years ago
a 23 gram sample of a substance thats a by-product of fireworks has a K-value of .13. whats the substances half life in days
nata0808 [166]
Given:
Initial mass, m₀ = 23 g
Decay constant, k = 0.13

Exponential decay obeys the equation
m(t)=m_{0} e^{-kt}
where t = time, days

For half life, the mass is m = m₀/2.
Therefore
e^{-0.13t} = \frac{1}{2} \\ -0.13t = ln(0.5)\\t= \frac{ln(0.5)}{-0.13} =5.33

Answer: The half life is 5.33 days
3 0
3 years ago
Read 2 more answers
Sam and Avery are making small and large birdhouses for an upcoming craft show. They will sell the small birdhouses for $10 and
kupik [55]

Answer:

<h2>They should make 8 small ones and 12 large ones.</h2><h2>$260 they will make in total.</h2>

Step-by-step explanation:

They want to make as much money as possible.

Small bird house gives them $10 and large birdhouse give them $15.

Avery has time to decorate 12 birdhouse of either size.

Hence, to maximize the earning, Avery should build 12 large ones.

Sam can make any of the combination below in 24 hours.

4 Large and 1 small bird house, which will make 4 \times 15 + 10 = 70

3 Large and 3 small bird house, which will make 3 \times15 + 3 \times10 = 75

2 Large and 4 small bird house, it will gain 2 \times15 + 4 \times10 = 70

1 Large and 6 small bird house, it will make 1 \times15 + 6 \times10 = 75

8 small bird house, which will gain 8\times10 = 80

The profit will be maximize if Sam build 8 small bird houses.

Thus, they will make 80 + 12\times15 = 260.

5 0
3 years ago
Can someone help me find the functions zeros
Amiraneli [1.4K]

\bf g(x) = 2(x-3)^2-8\implies \stackrel{g(x)}{0}=2(x-3)^2-8\implies 8=2(x-3)^2 \\\\\\ \cfrac{8}{2}=(x-3)^2\implies 4=(x-3)^2\implies \pm\sqrt{4}=x-3\implies \pm 2 = x-3 \\\\\\ \pm 2 +3 = x\implies x = \begin{cases} 5\\ 1 \end{cases}

8 0
3 years ago
Read 2 more answers
Kaitlin runs 3 miles in 25 minutes. at the same rate, how many miles would she run in 20 minutes?
inessss [21]
Find out how much she runs in 1 minute. 

3/25=0.12 miles in a minute 

To find the distance covered in 20 minutes; 

(0.12)(20)
=2.4 miles 

Hope I helped :) 
6 0
3 years ago
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