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3 years ago

Julie earned 66 on the test. Describe how the scores of Julie’s classmates compared to Julie’s score.

Mathematics

1 answer:

Ne4ueva [31]3 years ago

4 0

We would need the data of their classmates scores to complete this answer

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Please help me with this question!!!!!! PLEASE.

DerKrebs [107]

Answer:

B. -9, 7

Step-by-step explanation:

For the rational expression to be undefined the denominator has to equal 0.

x² + 2x - 63 = 0

Factor left side.

(x - 7)(x + 9) = 0

Set factors equal to 0.

x - 7 = 0

x = 7

x + 9 = 0

x = -9

x = -9 or x = 7

8 0

3 years ago

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The average age of 4 children is 15 yrs . if the ages of their parents are added , their average age is 25 .find the age of thei

WITCHER [35]

The age of the father is 57 years old

<h3>Calculating mean of a population</h3>

Total age = Average age x Population

Average of the four children = 15

Population = 4

Total age of the four children = 15 x 4

Total age of the four children = 60 years

If the parents are added:

Population = 6

Average age = 25

Total age = 25 x 6

Total age = 150 years

Total age of the parents = 150 - 60

Total age of the parents = 110 years

The father is 4 years older than his wife

Let the age of the father be x

The age of the wife = x - 4

x + x - 4 = 110

2x = 114

x = 114/2

x = 57

Therefore, the age of the father is 57 years old

Learn more on The mean of numbers here: brainly.com/question/20118982

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2 years ago

The number of students taking classes at RSM Branch A is 1

juin [17]

Answer:

B = 1320

$A= \dfrac54B$

Step-by-step explanation:

Let A = number of students at Branch A

Let B = number of students at Branch B

If the number of students taking classes at Branch A is 1/4 more than Branch B, then:

$A=1 \dfrac14B$

$\implies A= \dfrac54B$

If Branch A has 1,650 students, then substitute A = 1650 and solve for B:

$\implies 1650= \dfrac54B$

$\implies 1650 \times 4= 5B$

$\implies 6600 =5B$

$\implies B=\dfrac{6600}{5}$

$\implies B=1320$

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3 years ago

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Geometry question need help finding the answer.

Xelga [282]

Answer: 1208.96

Step-by-step explanation:

The volume of the cylinder is $(\pi)(4^2)(4)=64\pi$

The volume of the prism is $(6)(12)(14)=1008$

So, the total volume is $1008+64\pi=\boxed{1208.96}$

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2 years ago

What is the volume of this square pyramid?

likoan [24]

Answer:

400m^3

Step-by-step explanation:

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