MATHEMATICS MIDDLE SCHOOL

What's the diameter of a circle with a circumference of 48 millimeters

Answers

Answer 1
Answer: since we are given circumference, we think the formula for the circumference, which is 2(pi)r or (pi)d where r and d is the radius and diameter respectively.  the smarter formula of the 2 is (pi)d because it's d we want to find.  setting up our equation:
circumference = (pi)d
48 = (pi)d
dividing both sides by pi gives:
d = 15.29 millimeters

let me know if you have any questions!

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What is the correct way to write 1/4% as a decimal

Answers

Answer:

1/0.04 = 25

Step-by-step explanation:

Answer:

Step-by-step explanation:

well 1/4% wouldnt be 25% because they are 25% = 0.25 = 1/4

the percentage sign changes everything

since it is 1/4% rather than 1/4 by itself

1/4% = 0.25%

if you want to know the percent as a decimal you move the "." to the left twice

(or divide by 100)

so that means that the decimal of 0.25% would be 0.0025

A water bottle contains 2,000 milliliters of liquid. A water jug can hold 6 liters of liquid.How many water bottles must be emptied into the water jug in order to fill it?​

Answers

3 water bottles.



1 liter is the same as 1,000 milliliters. So, the water jug can hold 6,000 milliliters of liquid.

Simple divide 6,000/2,000, which is the same as 6/2, to get 3. So, the water jug needs 3 water bottles of liquid to fill it.



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What is 48 mins as a decimal

Answers

Well 48 out of 60 is 80% so the answer is .8
hh : mm : ss
00 : 48 : 00

answer 
00 : 48 : 00

= 0.8 hours
= 48 minutes
= 2880 seconds
hoped this helped :)

Help me pls.....................

Answers

divide all three sections height times width times times length and you get your answer.
the volume is 336 mm squared.  9.6 x 5 x 7 = 336

Cindy has a jar of mixed nuts. there are two pecans,eight peanuts, and fourteen cashews in her can. Cindy grabs two nuts and gives them to her friend,Pete, and he eats them. Which answer choice best describes this event?a.) This is an independent event because Cindy is putting the nuts back into the can.
b.)This is a dependent even because Cindy is putting the nuts back into the can
c.)This is an independent event because Pete ate the nuts, and they cannot be replaced.
d.)This is a dependent event because Pete ate the nuts,and they cannot be replaced.

Answers

c the independent is the answer

he is wrong it is A

Step-by-step explanation:

Rina drove for 1 hour at 45 mph and 1.5 hours at 50 mph. What was her average speed for the trip?

Answers

Answer:

Her average speed for the trip was 48 mph.

Step-by-step explanation:

Rina drove 1 hour at the speed = 45 mph

Distance covered in 1 hour = 45 miles

she drove 1.5 hours at the speed = 50 mph

Distance covered in 1.5 hour = 50 × 1.5 = 75 miles

Total distance covered by Rina = 45 + 75 = 120 miles

Total time taken by Rina = 1 + 1.5 = 2.5 hours

Average speed = Total distance / Total time

                           = 120 ÷ 2.5 = 48 mph

Her average speed for the trip was 48 mph.
1hour at 45mph , total distance = 45miles
1.5hours at 50kmph , total distance= 50 × 1.5 = 75miles

total distance tracaled = 120mls
total time = 2.5 hours

(miles)/(hour) = (120)/(2.5) = 48mph
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