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3 years ago

(Need help ASAP!) Select the equation that most accurately depicts the word problem.

Mathematics

2 answers:

antiseptic1488 [7]3 years ago

5 0

I the answer is C I’m not really sure but I’ll update u when i get the answer

lutik1710 [3]3 years ago

5 0

The answer is B because you have two equal sides which are double the length of the shortest side, therefore 2x is the length of the two equal sides, and x is the shortest length, or B

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If each student needs 1/3 of a stick of clay to do an art project,and there are 4 sticks of clay, how many students can do the a

siniylev [52]

Answer:

12 students

Step-by-step explanation:

Because the total is 4 sticks, and each student needs 1/3 of a stick, we would have to see how many 1/3 sticks fit into 4 sticks. Because 3 of the 1/3 sticks fit into 1 stick, then 4 sticks would be 4*3=12 of the 1/3 sticks, which means 12 students can do it.

We could also just do: 4/(1/3)= 4*(3/1)=12

This is fractional division. The second value of the division process, we switch the numerator and denominator's, and the expression turns to a multiplication expression, where we can just multiply.

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2 years ago

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Find the difference: 489 - 18.6

marta [7]

Answer:

470.4

Step-by-step explanation:

489-18.6

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489.0

- 18.6

470.4

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3 years ago

Any help is appreciated!!

qaws [65]

Answer:

Step-by-step explanation:

600,000,000

6 0

3 years ago

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manny plans to save 1/12 of his salary each week. if his salary is$375, find the amount he will save each week

sasho [114]

So first you need to find 1/12 of 375. To do this you need to divide 375 by 12. So, your answer will be 31.25 per week.

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3 years ago

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The life in hours of a 75-watt light bulb is known to be normally distributed with standard deviation σ = 25 hours. A random sam

irina [24]

Answer: a) (1008.34,1019.658) b) (1009.24,1018.76)

Step-by-step explanation:

Since we have given that

n = 75

mean = 1014 hours

Standard deviation = 25 hours

At 95% two sided , z = 1.96

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.96\dfrac{25}{\sqrt{75}}\\\\=1014\pm 5.658\\\\=(1014-5.658,1014+5.658)\\\\=(1008.34,1019.658)$

(b) Construct a 95% lower confidence bound on the mean life.

z = 1.65

So, confidence interval would be

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.65\times \dfrac{25}{\sqrt{75}}\\\\=1014\pm 4.76\\\\=(1014-4.76,1014+4.76)\\\\=(1009.24,1018.76)$

Hence, a) (1008.34,1019.658) b) (1009.24,1018.76)

4 0

3 years ago