Answer:
40 different arrangements of songs
Step-by-step explanation:
Answer: 
<u>Step-by-step explanation:</u>
Since the expressions have the same denominator, we simply need to add the numerators.
Answer:530.9 if taking calculator value of pie otherwise 530.6
Step-by-step explanation:
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➷ a) (1)^2 + 20 = 21
(2)^2 + 20 = 24
(3)^2 + 20 = 29
b) (5)^2 + 20 = 45
(6)^2 + 20 = 56
There are 5 terms less than 50
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Answer:
75 total tickets
Step-by-step explanation:
METHOD 1:
We know that 45 children's tickets have been sold, being 60% of the total tickets having been sold.
So, basically, we solve for x:
We have, 60% × x = 45
or, 60/100 × x = 45
Multiplying both sides by 100 and dividing both sides by 60,
we have x = 45 × 100/60
x = 75
If using calculator, enter 45x100/60, which will give you the answer.
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METHOD 2:
Division is the opposite of multiplication
Start with the formula to calculate the percentage of total
y=value÷ percentage/100
Substitute values in the equation
y=45÷60/100
Simplify and solve
y=45÷0.6
y=75
Both methods give you 75, therefore 75 tickets have been sold
