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irinina [24]
3 years ago
8

A ruby ring which normally sells for ​$310 is on sale for ​$217. Find the percent markdown for each ring.

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
4 0

Answer:

My awnser isss

Step-by-step explanation:

32% my homie

OverLord2011 [107]3 years ago
4 0

Answer:30%

Step-by-step explanation:

Discount = Original Price (X) discount (X) %/100

Discount = 310 × (30)/100

Discount = 310 x 0.3

You save = $93.00

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The diameters of ball bearings are distributed normally. The mean diameter is 130 millimeters and the variance is 9. Find the pr
Crank

Answer:

0.0478

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 135 mm

μ is the population mean = 130 mm

σ is the population standard deviation.

We are given variance = 9

Standard deviation = √variance = √9 = 3

Hence

z = 135 - 130/3

z = 1.66667

Probability value from Z-Table:

P(x<135) = 0.95221

P(x>135) = 1 - P(x<135) = 0.04779

Approximately to 4decimal places = 0.0478

8 0
3 years ago
Aj's diner sold 12 club sandwiches, 15 chicken sandwiches, 20 hot dogs and 30 hamburgers for lunch. which ratio is the greatest
Drupady [299]
I believe the answer is C. because there were 20 hot dogs and 30 hamburgers sold for lunch...wouldn't the ratio be 30:20?
(correct me if I'm wrong).
8 0
3 years ago
a crew of highway workers paved 2/15 mile in 20 minutes.if they continued working at the same rate,what portion of a mile wil th
icang [17]

Answer:

2/5 of a mile

Step-by-step explanation:

The easiest approach is to realise that one hour is 3 times longer than  

20 minutes. The longer the time, the more they will pave.


2/5  of a mile, in 20 minutes, how much in 60 minutes?(#)

They will pave 3 times more.

2/15 x 3/1 = 6/15 of a mile

6/15 = 2/5 of a mile

8 0
4 years ago
PLS HELP THIS IS DUE TODAY
solmaris [256]
Aleks is so hard if you figure it out let me know.
8 0
3 years ago
Read 2 more answers
Which list shows all the factor pairs of 30?
atroni [7]

The list that shows all the factors pairs of 30 is A

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3 years ago
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