3 years ago

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

olga55 [171]3 years ago

4 0

11/5x-1 this should be the answer

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a cell phone company found that 15 of their phones sold in June were defective. The company sold 250 phone in June. How many of

larisa [96]

Write and solve an equation of ratios, as follows:

15 250

----- = ------- = 10/12.

x 300

Then 15(12) = 10x, and x = 18. The company could well predict that 18 out of the 300 phones it sells in July will be defective, based upon past history.

6 0

3 years ago

Eliza’s backpack weighs 18 7/9 pounds with her math book in it. Without her math book, her backpack weighs 14 ⅞ pounds. How much

UNO [17]

Make each fraction have a like denominator

7/9 * 8/8= 56/ 72

7/8 * 9/9 = 63/72

18 + 14 + (56+63)/72

32 + 119/72

32 + 1 + 47/72

33 and 47/72

3 0

3 years ago

Read 2 more answers

Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 22 days and

Alika [10]

Answer:

25.5 days

Step-by-step explanation:

Mean number of days (μ) = 22 days

Standard deviation (σ) = 6 days

Z-score for the 72nd percentile (according to tabulated values) = 0.583

The z-score for any number of days, X, is determined by:

$z=\frac{X-\mu}{\sigma}$

The value of X that is greater than 72% of the trial times is:

$0.583=\frac{X-22}{6}\\ X=25.5\ days$

Therefore, 72% of all of these types of trials are completed within 25.5 days.

6 0

3 years ago

Help please!!!!!!!!!!!!!!!!!

krok68 [10]

C. 0.25 because you divide 0.06 by 0.24

5 0

3 years ago

The population of Tinyville is 16.2 Tinys per acre. Exactly 405 Tinys live in Tinyville. How many acres is Tinyville? Only enter

Mice21 [21]

The answer is 25 because 405/16.2=25.

8 0

3 years ago