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ladessa [460]
3 years ago
14

How many 1-inch cubes do you need to create a cube with an edge length of 5 inches?

Mathematics
2 answers:
Luden [163]3 years ago
7 0
125 cubes to get to 5 inches 5 * 5*5=125

Bess [88]3 years ago
4 0
You need 125 1-inch cubes to create a cube with annedge length of 5 inches
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I'm doing simplifying expressions with exponents
VladimirAG [237]

Answer:

Expressing a number in a power of 2 means that you have to figure out how many times you should multiply 2 by itself so the product will be that number.

The number is expressed as 2^n

For example:

Express 16 as a power of 2:

To get 16, you have to multiply 2 by 4 times.

2 × 2 × 2 × 2 = 16

16 = 2^4

Then the answer is 2^4

7 0
3 years ago
An airline allows each passenger to have a suitcase weighing no more than 45 lbs. If Hank needs to lower his suitcase weight by
diamong [38]
Okay, so he started out with 45 lbs. 

Let's make 40% into a decimal. 

40%= .4

I would multiply .4 to 45.
 18.

Add 18 to 45 to get the answer.

The original weight of his bag was 63 pounds. 



5 0
3 years ago
Please help ! This is 7th grade math and I’ve been stuck on this question for 30 minutes!
FinnZ [79.3K]

\dfrac{1}{22}\:\dfrac{\text{in}}{\text{hr}}

Step-by-step explanation:

The amount of time from 10pm to 7am is 9 hours. However, the time indicated is 7:10am. Since there are 60 minutes in an hour, 10 min is equal to 1/6 of an hour. Therefore, the total time that the water level of the pool decreased is 9\frac{1}{6} hours or \frac{55}{6} hours. To find the rate at which the water level decreased, we divide the change in the water (in inches) by the time it took to reach that level. So we write

rate of change = \dfrac{\text{change\:in\:height}}{\text{change\:in\:time}}

\:\:\:\:\:\:\:= \dfrac{\frac{5}{12}\:\text{in}}{\frac{55}{6}\:\text{hrs}}

\:\:\:\:\:\:\:=\dfrac{5}{12}\cdot\dfrac{6}{55}\:\dfrac{\text{in}}{\text{hr}}

\:\:\:\:\:\:\:= \frac{1}{22}\:\dfrac{\text{in}}{\text{hr}}

7 0
3 years ago
Use the scale below to complete the sentence.
goblinko [34]
21ft in yards equals 7 yards I hoped this helped!
5 0
3 years ago
There 400 members at the school band. Of those, 220 were girls. Expressed as a percentage, how many more girls than boys were th
GuDViN [60]
220/400 = 55%
100%- 55% = 45%
there were 45% more girls than there were boys.
3 0
3 years ago
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