MATHEMATICS HIGH SCHOOL

A store is offering a 20% discount on all sales over $50. If you purchase a shirt and a pair of jeans for $62.50, what is the amount of the discount you would receive?A. $10.00
B. $50.00
C. $15.63
D. $12.50

Answers

Answer 1
Answer: Discount = 20% of the product price
Discount = 20/100 × $62.50
Discount = $12.5
Answer 2
Answer:

The store is offering a 20% discount on all sales over $50. If you purchase a shirt and a pair of jeans for $62.50, the amount of the discount you would receive is $12.50 , 62.50* 20% = 62.50*0.20 = $12.50

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Let n = 4. What is the value of 7 • 6 + n • 2?

A.
50

B.
92

C.
98

D.
140

Answers

(7 • 6) + (4 • 2)
42 + 8 = 50

Until a train is a safe distance from the station it must travel at 5 m/s. Once the train is on open track it can speed up to 45 m/s. If it takes a train 8 seconds to reach 45 m/s, what is the acceleration of the train? (Round your answer to the nearest whole number.)A) 4 m/s2
B) 5 m/s2
C) 6 m/s2
D) 7 m/s2

Answers

The correct answer is B) 5 m/s².

Explanation:
To find acceleration, we find the ratio of the change in velocity to the change in time. The change in velocity is 45-5=40. It takes 8 seconds, so the change in time is 8. 40/8=5.
the  answer is 5 because acceleration=change speed/change time
change time=8
change speed=45-5=40
40/8=5

5  m/s^2 is acceleration

The sum of three consecutive integers is 267 what is the largest integer

Answers

Well 88 + 89 + 90 = 267. So the largest integer is 90.
If we cal lthe first number 'n' then we know that the numbers are n, n+1 and n+2 and we know the sum:
n+(n+1)+(n+2)=267
therefore:
3n+3=267
3n=264
n=88

The numbers are 88,89,90, the largest of which is 90.

To check: 88+89+90=267. Checks.

What is the domain, range, and function of y=absolute value of x-3 +2i put the domain as 3 and the range as 2 and the function as yes

Answers

y=|x-3|+2\n\nDomain:x\in\mathbb{R}\n\nRange:y\in[2;\ \infty)\ because\ |x-3|\geq0\ and\ +2

64 is 4 times the difference between Sarah's age, a, and 44. Assume Sarah is older than 44

Answers

4(a-44)=64
a-44=16
a=60
Sarah is 60 years old. 
Hope this helps. 

Answer:

60

4(a-44)=64

Step-by-step explanation:

2y = x + 3 5y = x - 7 What is the solution set of the given system? {(-1/3, -4/3)} {(1/3, 4/3)} {(-29/3, -10/3)} {(29/3, 10/3)}

Answers

I hope it cleared your doubt.

The answer for this question is option C.
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