#24 please a-c with cindys age

Answers

Answer 1

Answer: I only have an answer for letter a because i do not get the other question for letter b and c
so the answer to a is d +8 =18
btw d is for dad's age

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A student is selecting 5 different geography books, 4 different chemistry books, and one of 7 different science books. In how many different ways can a student select them?

Answers

There would be 5184 ways in which each subject books can be selected.

Explanation:

Number of geography books = 5

Number of chemistry books = 4

Number of Science books = 7

Different ways of selecting geography books = 5!

= 5 X 4 X 3 X 2 X 1

= 120

Different ways of selecting chemistry books = 4!

= 4 X 3 X 2 X 1

= 24

Different ways of selecting Science books = 7!

= 7 X 6 X 5 X 4 X 3 X 2 X 1

= 5040

Total different possible ways they can select them = 120 + 24 + 5040

= 5184

What is the value of y2-x2 when y=6 and x=5

Answers

Answer:

The answer is 2

Step-by-step explanation:

STEP 1 fill in the varriables= (6 times2)-(5 times 2)

STEP 2 solve parenthesis= 12-10

STEP 3 ANSWER IS 2 mark as brailiest

Answer:

The answer is 2

Step-by-step explanation

You replace each variable with their number and solve using PEMDAS

Is the square root of 75/3 a rational or irrational number?

Answers

the square root of 75/3 is a irrational number

The square root of 75 / 3 ======> Irrational number

square root of 75 / 3

Index Value (n): 75

Number (x): 3

Given Value square root 75 / 3 =======> is IRRATIONAL

The Value is: 1.0147559739645253

Hope that helps!!!!! : )

Is the difference if 1.48-0.25 less than or greater than one? explain

Answers

$1.48 - .25$
1.23

Phil's garage charges $50 for towing and $40 per hour t o fix a car. Cliff's Cars charges $60 for towing and $38 per hour to fix a car. After how many hours of working on the car will the cost of towing and fixing a car be the same at the two repair shops?

Answers

you have to add them both phils 4 times and add cliffs 5 times to get the sameanswer witch it 250

Determine the time needed to deliver 72 papers at rate of 9 papers in 18 minutes.

Answers

Answer: The required time needed to deliver 72 papers is 2 hours 24 minutes.

Step-by-step explanation: Given that 9 papers are delivered in 18 minutes.

We are to determine the time needed to deliver 72 papers.

We will be using the UNITARY method to solve the problem.

We have

Time needed to deliver 9 papers = 18 minutes.

So, time needed to deliver 1 minute will be

$(18)/(9)=2~\textup{minutes}.$

Therefore, time needed to deliver 72 papers is given by

$2*72=144~\textup{minutes}=(120)/(60)~\textup{hours},24~\textup{minutes}=2~\textup{hours}~24~\textup{minutes}.$

Thus, the required time needed to deliver 72 papers is 2 hours 24 minutes.

So you need to find out time. What you do is divide 72 by 9 to get 8. Once you get 8, you have to multiply it by 18. Your answer is then 144 Papers

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Students in a dance class filled out a survey. There were 25 girls and some boys whoparticipated in the survey. The results showed that 20% of the students prefer tap dance to ballroom dance. There are 9 students who prefer tap dance. Which equation can be used to find the number of boys ( x) who participated in the survey? A. 0.2 x + 25 = 9 B. 0.2( x + 25) = 9 C. 0.2(25 – 9) = x D. 25 + x = 0.2 × 9