2 years ago

A stack of magazines is 4 & 2/5 inches high. Each magazine is 2/5 inch thick. How many magazines are in the stack

Mathematics

1 answer:

Oliga [24]2 years ago

4 0

Answer:

11 magazines

Step-by-step explanation:

4 & 2/5 = 22/5

22/5 divided by 11 = 4 2/5

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Solve without a calculator log_4(20)-log_4(45)+log_4(144)

AfilCa [17]

Log₄20-log₄ 45+log₄144=
log₄(20/45)+log₄144= (log_a b- log_a c=log_a (b/c) )
log₄[(20*144)/45]= (log_a b +log_a c=log_a (b*c) )
log₄(2880/45)=
log₄(64)=n ⇔ 4^n=64 (log_a x=n ⇔ a^n=x)

4^n=4³ ⇒n=3 (64=4*4*4=4³)

Answer: log₄20-log₄ 45+log₄144=3

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3 years ago

A block of gold with a mass of 3864 kilograms has a volume of 0.2 cubic meters. What is the density of gold?

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3 years ago

What would the area of an actual pool be in the scale from the drawing is 3:1000

elena55 [62]

Answer:

If this is the complete question them the answer is 1250 m²

Step-by-step explanation:

the pool in the drawing is 15x7.5 and the scale is 3/1000 so if the size in the drawing is 3 then the actual is 1000.

x=15*1000/3=5000cm which would be 50m

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