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dalvyx [7]
4 years ago
15

Is 21x9=9x21 identity

Mathematics
2 answers:
Ymorist [56]4 years ago
8 0
No, it is not because IDENTITY means itself, so the answer has to be the same. 
laila [671]4 years ago
7 0
Nope because it has its own identy like you are your own pearson with your own identy so just think of it that way
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Write a function number_of_pennies() that returns the total number of pennies given a number of dollars and (optionally) a numbe
seraphim [82]
Ok, first of all, it is important to understand that this function would depend on 2 variables; the number of dollars (x) and the number of pennies (y). Every dollar is equivalent to 100 pennies. So, if we are given x dollars, we have 100*x pennies. If we also have y pennies, we still get y pennies. We need to add these two to get the total amount of pennies. Thus, the correct function is:
f(x,y)=100*x+y
7 0
3 years ago
Jessica is measuring two line segments. The first line segment is 30 cm long. The second line segment is 500 mm long. How long a
ElenaW [278]

Answer:

80 cm

Step-by-step explanation:

To find the length of both segments together, convert the lengths into one unit measure. Convert 500 mm  into centimeters by dividing it by 10. 500/10 = 50 cm. Now add 30 + 50 = 80 cm. The segment is 80 cm long.

7 0
3 years ago
Read 2 more answers
1. Mr. Samuel had 13 notes in his wallet. They consist of $1. $5 and $10 notes. The total amount of the notes adds up to $93. Ho
bazaltina [42]

Answer:

8 $10 notes

Step-by-step explanation:

I started by working it backwards. $93-$3 equals $90. So we have three of our 13 notes. We need ten more. Well the most $10 notes we can have is 8. if we had 8 $10 notes that would give us $80. $90-$80=10. We can take ten and divide it by five so we have 2 $5 notes.

So in total he would have 8 $10 notes, 2 $5 notes, and $3 one dollar notes which adds up to 13 notes

7 0
2 years ago
two students club plan to share a bus on a trip to the capital transportation at lunch for day cost $12 per student one club has
ozzi

Answer:

$516

Step-by-step explanation:

first you multiply 12 and 25 and you get 300

then you multiply 12 and 18 and you get 216

Then finally you add 216 and 300 together to get $516

7 0
3 years ago
Of the cakes at Naomi's Bakery, 1/6 have chocolate frosting. Of the cakes with chocolate frosting, 1/5 have raspberry filling. W
Sever21 [200]

Answer:

\frac{1}{6}  \times  \frac{1}{5 }  \\  \frac{1}{30}

5 0
3 years ago
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