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Mama L [17]
3 years ago
12

Jill will go to the swimming pool on 20 different days this month.

Mathematics
1 answer:
yulyashka [42]3 years ago
4 0

Answer:

15

Step-by-step explanation:

2.25 times 20=45

45-30=15

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Scalene triangle

Step-by-step explanation:

a scalene triangle has 3 uneven sides

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2 years ago
On the map the distance between two towns is 10.5 centimeters. If 3 centimeters represents 90 miles what is the actual distance
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Answer:

315 miles

Step-by-step explanation:

90 times 3 plus 45

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Which are rational and irrational? Thanks in advance :)
DochEvi [55]

Answer:

3\frac{1}{2}-rational

\pi -irrational

-\frac{2}{3}-rational

\sqrt{16} -rational

\sqrt{3} -irrational

18-rational

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0.987987987...-rational

Step-by-step explanation:

Rational numbers:

-are all numbers you can write as a quotient of integers  \frac{a}{b} , b\neq 0

-include terminating decimals. For example, \frac{1}{8}=0.125

-include repeating decimals. For example, \frac{1}{3} =0.33333....

Irrational numbers:

-have decimal representations that neither terminate nor repeat. For example, \sqrt{2}=1.414213....

-cannot be written as quotients of integers

8 0
3 years ago
How many different combinations of pennies, nickels, dimes, quarters, and half dollars can a piggy bank contain if it has 20 coi
ycow [4]
 <span>Because there are 20 coins plus four bars = 24 items to choose. You want to choose where to put the four bars, thus C(24,4). There are four bars, not five. Note that four bars divide the 20 coins into five sections. Five bars would divide it into six, but we only have five different kinds of coins to choose from.</span>
5 0
2 years ago
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