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Liono4ka [1.6K]
2 years ago
14

The soccer team collected $800 at a car wash fundraiser. They charged $5.00 for small vehicles and $10.00 for longer vehicles. T

he amount collected can be modeled by the equation 5x+10y=800, where x represents the number of small vehicles and y represents the number of larger vehicles. If the number of larger vehicles washed was 50, how many small vehicles were washed in total?
Mathematics
1 answer:
Dahasolnce [82]2 years ago
4 0

There are 160 small cars that were washed because u divide

800/ 5= 160. :P

Hope this helps you!!

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Which of the following statements are not true in developing a confidence interval for the population mean?
frutty [35]

Answer:

b) The width of the confidence interval becomes narrower when the sample mean increases.

Step-by-step explanation:

The confidence interval can be calculated as:

\bar{x} \pm \text{Test Statistic}\displaystyle\frac{\sigma}{\sqrt{n}}

a) The width of the confidence interval becomes wider as the confidence level increases.

The above statement is true as the confidence level increases the width increases as the absolute value of test statistic increases.

b) The width of the confidence interval becomes narrower when the sample mean increases.

The above statement is false. As the sample mean increases the width of the confidence interval increases.

c) The width of the confidence interval becomes narrower when the sample size n increases.

The above statement is true as the sample size increases the standard error decreases and the confidence interval become narrower.

8 0
3 years ago
Gilda drove 650miles at an average speed of 50 miles per hour.how many miles per hour faster would she have had to drive in orde
zzz [600]
T=650mi(hr/50mi)=13 hr

t-1=12 hr

12=650/(50+v)  multiply both sides by 50+v

600+12v=650  subtract 600 from both sides

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6 0
2 years ago
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Marta_Voda [28]
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2 years ago
Pamela compró un trozo de carne uso 3/8 kg de ese trozo para preparar un guisado y sobraron 3/4 kg ¿cuanto pesaba originalmente
vova2212 [387]

Answer:

Pamela bought a piece of meat using 3/8 of that piece to make stew and there were 3/4 kg left over how much did the piece of meat he ate originally weigh?

Step-by-step explanation:

I searched it up. hopefully it helps

3 0
3 years ago
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Lemur [1.5K]

Answer:

Therefore the maximum number of bouquets is 12.

Step-by-step explanation:

Given that, Angelina has 24 tulip and 36 roses.

To find the number bouquets, we need the find out the g.c.d (greatest common divisor) of 24 and 36.

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36=2×2×3×3

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The g.c.d of 24 and 36 is =2×2×3

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Therefore the maximum number of bouquets is 12.

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3 years ago
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