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MatroZZZ [7]
3 years ago
11

Dianna has 6 quarters, 5 dimes, and 4 nickels in her purse. She reaches into her purse and randomly grabs two coins. What is the

probability that Dianna grabs two dimes?
A. 1/9
B. 4/45
C. 5/52
D. 2/21
Mathematics
1 answer:
777dan777 [17]3 years ago
4 0
The correct answer is B: 4/45


reasoning:

how to get the answer is simple. first you have to find a common factor. the only common factor in this chart of 15 is 45. even from then you have an obvious answer and can eliminate all other possible answers. :)
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ABCD is a quadrilateral with AB equal and parallel to DC. prove that AD is equal and parallel to BC​
rewona [7]

Answer: see below proof

Step-by-step explanation:

Imagine a diagonal line AC

If AB = DC and AB // DC then angle BAC =

Angle ACD Alternate Interior angles theorem.

Then if AB = AD and angle BAC = angle ACD and AC = AC then triangle ABC is congruent to triangle CDA.

If triangle ABC is congruent to triangle CDA then AD = BC because congruent parts of congruent triangles are congruent.

If triangle ABC is congruent to triangle CDA then angle ACB = angle CAD because congruent parts of congruent triangles are congruent.

If angle ACB = angle CAD then AD // BC because of the alternate interior angles theorem.

6 0
3 years ago
What is 14 - 16 * 10 + 12-( 13/13) <br> * = multiplication <br> (I know the answer ) :)
SVEN [57.7K]

Answer:

See explanation.

Step-by-step explanation:

13 / 13 = 1.

14 - 16 = -2

-2 * 10 = -20

-20 + 12 = -8

-8 - 1 = -9

Answer = -9

6 0
2 years ago
Read 2 more answers
114.9 million U.S. households owned at least one TV set. Of these households, 88% received basic cable. How many households owne
11Alexandr11 [23.1K]
Find the percentage of the household that didn't receive basic cable
100% - 88% = 12%
<em>This is the percentage of the household that didn't receive basic cable by the household owned TV set.</em>

Now find the number with the percentage
without basic cable = 12% × 114.9 million
without basic cable = 12/100 × 114,900,000
without basic cable = 13,788,000

<em>The number of households that didn't receive basic cable is 13,788,000 or 13,788 million</em>
6 0
3 years ago
Pls help meeeee<br> This is about to be due
telo118 [61]

Answer:

3:123 4:0 5:13.69

Step-by-step explanation:

I hope this helps

4 0
2 years ago
Explain what |-13| means and how to simplify.
poizon [28]

The two bars ( | | ) symbolize absolute value

Absolute value is essentially just making the number given positive.

If the given number is already positive then the absolute value is the same as the original number

|-13| is 13

The absolute value of -13 is 13

Hope this helped!

~Just a girl in love with Shawn Mendes

4 0
3 years ago
Read 2 more answers
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