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3 years ago

A jacket that cost a store $120 was marked up to $168. What percent was the mark up?

Mathematics

2 answers:

german3 years ago

8 0

Answer:

48%

Step-by-step explanation:

you have to subtract 168 and 120

inna [77]3 years ago

8 0

Answer:

140%

Step-by-step explanation:

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The operations manager of a large production plant would like to estimate the mean amount of time a worker takes to assemble a n

xz_007 [3.2K]

Answer:

(15,595, 16,805)

Step-by-step explanation:

We have to:

m = 16.2, sd = 3.75, n = 150

m is the mean, sd is the standard deviation and n is the sample size.

the degree of freedom would be:

n - 1 = 150 - 1 = 149

df = 149

at 95% confidence level the t is:

alpha = 1 - 95% = 1 - 0.95 = 0.05

alpha / 2 = 0.05 / 2 = 0.025

now well for t alpha / 2 (0.025) and df (149) = t = 1,976

the margin of error = E = t * sd / (n ^ (1/2))

replacing:

E = 1,976 * 3.75 / (150 ^ (1/2))

E = 0.605

The 95% confidence interval estimate of the popilation mean is:

m - E <u <m + E

16.2 - 0.605 <u <16.2 + 0.605

15,595 <u <16,805

(15,595, 16,805)

5 0

3 years ago

16-5(3t-4)=8(-2t+11) How to Solve

Hunter-Best [27]

16 - 5(3t - 4) = 8(-2t + 11) use distributive property: a(b + c) = ab + ac

16 - (5)(3t) - (5)(-4) = (8)(-2t) + (8)(11)

16 - 15t + 20 = -16t + 88

36 - 15t = -16t + 88 subtract 36 from both sides

-15t = -16t + 52 add 16t to both sides

t = 52

5 0

3 years ago

What is the greatest negative integer

goldenfox [79]

There are infinite integers, even if they are negative.

7 0

4 years ago

Piper works at a camera store. He is paid an hourly rate 16% commission on everything he sells. One week, he is paid $365 for wo

liraira [26]

P=rt+0.16s

365=20r+0.16(1500)

365=20r+240

125=20r

r=6.25

So Piper makes $6.25 an hour.

3 0

3 years ago

At Friday's football game, 1,294 tickets were sold for a total amount of $8,816.00. If each student ticket costs $5.00, and each

NeTakaya

Answer:

512 student tickets.

Step-by-step explanation:

Let x be number of student tickets and y be number of adult tickets.

We have been given that at Friday's football game 1,294 tickets were sold. We can represent this information as:

$x+y=1294...(1)$

We are also told that each student ticket costs $5.00, and each adult ticket costs $8.00 and 1,294 tickets were sold for a total amount of $8,816. We can represent this information as:

$5x+8y=8,816...(2)$

From equation (1) we will get,

$y=1294-x$

Substituting this value in equation (2) we will get,

$5x+8(1294-x)=8,816$

$5x+10352-8x=8,816$

$-3x+10352=8,816$

$-3x=8,816-10352$

$-3x=-1536$

$x=\frac{-1536}{-3}$

$x=512$

Therefore, 512 student tickets were purchased at Fridays football game.

6 0

3 years ago