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Maslowich
2 years ago
11

PLEASE HELP Question 1(Multiple Choice Worth 4 points) Write an expression for the perimeter of the triangle shown below: A tria

ngle is shown with side lengths labeled 0.3x plus 24, 5x, and 0.2x minus 15. 10x − 9 10x − 39 5.5x − 9 5.5x + 9
Question 2(Multiple Choice Worth 4 points) Erica purchased adult and youth tickets for a movie. She bought x adult tickets for $7 each and y youth tickets for $5. Write an expression that can be used to show the total cost, C, of all tickets. C = 7x + 5y C = (7 + 5)x C = (7 + 5)(x + y) C = 7y + 5x
Question 3(Multiple Choice Worth 4 points) Write an expression that is equivalent to three over five (3y + 15). three over fivey + 9 three over five y + 15 nine over fivey + 9 nine over fivey + 15
Question 4(Multiple Choice Worth 4 points) Jamie purchased a DVD that was on sale for 15% off. The sales tax in her county is 5%. Let y represent the original price of the DVD. Write an expression that can be used to determine the final cost of the DVD. y − 0.15y 0.05(0.85y) y − 0.85y + 0.05y 1.05(0.85y) Question 5(Multiple Choice Worth 4 points) Which expression is equivalent to one over threep + 15? one over three(p + 45) one over three(p + 5) 3(p + 45) 3(p + 5)
Mathematics
1 answer:
creativ13 [48]2 years ago
7 0

Answer:

(1. 5.5x + 9

(2. C = 7x + 5y

(3. 9/5 + 9

(4.1.05(0.85y)

(5. one over three(p + 5)

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Answer:

Critical value t-score=2.701.

Step-by-step explanation:

When we calculate a confidence interval with an unknown population standard deviation, we estimate it from the sample standard deviation and use the t-score instead of the z-score.

The critical value for t depends on the level of confidence and the degrees of freedom.

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2 years ago
Bill Payne visits his local bank to see how long it will take for $1,000 to amount to $1,900 at a simple interest rate of 12 ½%.
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2 years ago
After getting 10% discount a customer paid RS 2034 with 13% VAT to buy a bag from a retailer. If the retailer made a profit of 2
german

Answer:

33.33%

Step-by-step explanation:

We are told that the customer paid Rs. 2034 after getting 10% discount with 13% vat on marked price (m.p.)

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2034 = m.p. × 90/100 × 113/100

m.p = (2034 × 100 × 100)/(90 × 113)

m.p. = Rs.2000

Now, due to the fact that VAT (which in this question is given to be 13%) is not the profit of the retailer, thus the selling price (s.p.) of the bag would be given by;

s.p = m.p. × 90/100

s.p = 2000 × 90/100

s.p = Rs. 1800

We are told that the retailer made a profit of 20%

Thus:-

c.p. × 120/100 = s.p.

c.p.= s.p. × 100/120

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c.p. = Rs.1500

Therefore, the percentage with which he marked above the c.p is;

% mark up = (m.p - c.p)/c.p) × 100

Plugging in the relevant values, we have;

(2000 - 1500)/1500) × 100

(500/1500) × 100 = 33.33%

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