A girl has $3.35 in her pocket, consisting of dimes and quarters. If there are 23 coins in all, how many of each does she have? HELPPPPP PLEASE SHOW ALL WORK... THANKS

Answers

Answer 1

Answer: represent
d=number of dimes
q=number of quarters
thererfor
q+d=23

1q=0.25
1d=0.10
therefor

total value=3.35=0.25q+0.1d
so we have
q+d=23
0.25q+0.1d=3.35
solve
q+d=23
subtract q from both sides
d=23-q
subsitute
0.25q+0.1(23-q)=3.35
distribute
0.25q+2.3-0.1q=3.35
group like terms
0.25q-0.1q+2.3=3.35
add like terms
0.15q+2.3=3.35
subtract 2.3 from both sides
0.15q=1.05
multipliy both sides by 100 to get rid of decimal
15q=105
divide both sides by 15
q=7
subsitute
q+d=23
7+d=23
subtract 7
d=16

7 quarters
16 dimes

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Answers

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Garth estimated the height of the door to his classroom in meters .What is a reasonable estimate?

Answers

The height of a door will be around 6 feet and 8 inches, so about 7 feet. You will need to convert this to meters. To do this, you should first know that 1 meter = 3.28 feet. Now, divide 7 by 3.28:

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For this case, the first thing you should do is compare the height of the door with the height of a person.
On average, a person's height is between the following values:
1.40 meters - 1.80 meters
Therefore, we must find an amount that is greater than the maximum amount of a person's height.
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What is 18/30 reduced to

Answers

18/30, is reduced to 9/15 then 3/5.

9/15 first, because 18 and 30 are both divisible by 2.

18÷2=9 and 30÷2=15.

Then how I got 3/5, was because both 9 and 15 are divisible by 3.

9÷3=3 and 15÷3=5 so the final answer that you are looking for, is 3/5.

Answer: 3/5

Step-by-step explanation: In order to write the fraction 18/30 in lowest terms, we divide the numerator and the denominator by the greatest common factor of 18 and 30 which is 6.18 divided by 6 is 3 and 30 divided by 6 is 5 so 18/30 written in lowest terms is 3/5.

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Answers

Your answer would be 50

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