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Romashka [77]
3 years ago
13

1.)Write a number between 0 and 20 that has...

Mathematics
1 answer:
strojnjashka [21]3 years ago
4 0
A) two factors- 2 (1,2)
b) four factors- 6 (1,2,3,6)
c) five factors- 16 (1,2,4,8,16)
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Ian invested$1500 dollars in the bank. After 2 years he withdrew all his money. He received $1590. What interest rate was he get
dybincka [34]

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either 45$ a year or divide it to days/months

Step-by-step explanation:

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gavmur [86]

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18.<br> [Algebra - Expansion]<br> Expand 3(x + 2)
alexira [117]

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4 0
3 years ago
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Seventy percent of the 100 students in middle school cafeteria bought their lunch sone of the students that brought there own lu
gogolik [260]
So we solve for each
70% of 100=70
students who didn't buy lunch=100-70=30

some of the 70 left so that the students who bought lunch, are 60% of those who are left
we know that the students who didn't buy lunch didn't change number so therefor
100% of students left-60%=40%= students that didn't buy lunch=30 so
40%=30
20%=15
100%=75
there were 75 students lfet in the cafeteria
3 0
3 years ago
Tickets for a school play sold for $7.50 for each adult and $3.00 for each child. The total receipts for 118 tickets totaled $69
NeX [460]
X= number of adult tickets
y=number of child tickets.
we can suggest this system of equations: 
x+y=118                 ⇒x=118-y
7.5x+3y=696

we can solve this system of equations by substitution method:
7.5(118-y)+3y=696
885-7.5y+3y=696
-4.5y=-189
y=-189/-4.5
y=42

x=118-y
x=118-42
x=76

Answer: the number of adult tickets sold was 76. 
7 0
3 years ago
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