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3 years ago

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Nora and Eli are making homemade spring rolls for a party. Nora can make 8 spring rolls in 10 minutes. Eli can make 10 spring ro

lls in 12 minutes. How many do they each finish in 1 minute?
If they each make 40 spring rolls, who will finish first?

1 answer:

NemiM [27]3 years ago

6 0

Answer:

Could you possible elaborate on the question more?

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The Johnson family wants to start a college fund for their daughter Gabriella. They put $63, 000 into an account that grows at a

Rainbow [258]

Answer:

<em>It will take approximately 34.13 years</em>

Step-by-step explanation:

The function G(t) below represents the amount of money in some account t years after the account is opened for The Johnson's daughter Gabriella:

$G(t)= 63,000(1+ .0255/4)^ {4t}$

It's required to find the number of years (t) it will take for the account to reach G(t)=150,000. We need to solve the equation:

$63,000(1+ .0255/4)^ {4t}=150,000$

Dividing by 63,000 and simplifying:

$\displaystyle (1+ .0255/4)^ {4t}=\frac{150,000}{63,000}=2.38095$

Taking logarithms:

$\displaystyle \log(1+ .0255/4)^ {4t}=\log 2.38095$

Applying logarithms property:

$\displaystyle (4t) \log(1+ .0255/4)=\log 2.38095$

Solving for t:

$\displaystyle 4t =\frac{\log 2.38095}{\log(1+ .0255/4)}$

$\displaystyle t =\frac{\log 2.38095}{4\log(1+ .0255/4)}$

Calculating:

$\displaystyle t =\frac{0.37675}{0.01104}$

$\boxed{t \approx 34.13}$

It will take approximately 34.13 years

5 0

3 years ago

Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to sta

Dafna11 [192]

Answer: <em>r</em> represents a significant linear correlation.

Step-by-step explanation:

GIven : Linear correlation coefficient: r = 0.543

Sample size: n= 25

Significance levle: $\alpha=0.05$

Degree of freedom : n-2 = 25-2=23

Now, we check <em>r</em> critical value table for value with df = 23 and $\alpha=0.05$ .

Critical value = ±0.396 [From <em>r</em> critical value table]

Since r = 0.543 > 0.396, that means there is significant linear correlation.

Hence, <em>r</em> represents a significant linear correlation.

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3 years ago

. QUIZ You answered 14 questions correctly on a 15-question quiz. What percent did you receive on the quiz? Round to the nearest

Valentin [98]

Answer:90%

Step-by-step explanation:

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3 years ago

You paint 1 2 12 wall in 1 4 14 hour. At that rate, how long will it take you to paint one wall

Rudiy27

Ok. <span>well the answer 1/2 the hour you paint 1/2 in 1/4 so add 1/2+1/2=1 so it is 2 so 1/4+1/4 </span>

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Estimate the measure of the clockwise angle formed by the minute hand and the second hand, then classify the angle. A. 54°; acut

Harlamova29_29 [7]

I would go with b or a or d but not c

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3 years ago

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