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swat32
4 years ago
5

Simplify (9m+10)x2= Using the distributive property

Mathematics
1 answer:
dimulka [17.4K]4 years ago
7 0
This can be written as 2(9m)+2(10). The final answer is 18m+20.
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What is the opposite of 17?
Tanya [424]
The opposite of 17 is -17. You can figure this out by finding the negative version of 17, or the additive inverse of 17. Opposites, when added together, create a sum of 0.
Hope that helped you!
3 0
3 years ago
Two triangular roofs are similar. the ratio of the corresponding sides of these roofs is 2:3. if the altitude of the smaller roo
disa [49]
The answer is:  "6.75 ft."  .
______________________________________________
Explanation:
_____________________________________________
 2 / 3 = (4.5) / x ;  Solve for "x" ;

     2x = (3)(4.5) ;

Divide each side of the equation by "2" ; to isolate "x" on one side of the equation; and to solve for "x" ;
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    2x / 2 = [3*(4.5)] / 2 ; 

    to get:  x  = (13.5)/2 = 6.75 ft.  This is already rounded to the
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8 0
3 years ago
It takes 63 minutes for 4 people to paint 9 walls.
alukav5142 [94]

Answer:  7 people need 16 minutes to paint 4 walls.

Step-by-step explanation:

Since we have given that it takes 63 minutes to paint 9 walls ,

So, we will apply "time and work formula" i.e.

\frac{M_1\times D_1\times H_1}{W_1}=\frac{M_2\times D_2\times H_2}{W_2}

where,

H denotes number of hours or minutes,

D denotes number of days

M denotes number of men

W denotes work done them,

So, we need to calculate number of minutes for 7 people to paint 4 walls,

\frac{63\times 4}{9}=\frac{M\times 7}{4}\\\\7\times 4=\frac{M\times 7}{4}\\\\16=M

So, 7 people need 16 minutes to paint 4 walls.

6 0
3 years ago
Read 2 more answers
A triangle has sides with lengths of 9 centimeters, 12 centimeters, and 15 centimeters. Is it a right triangle?
strojnjashka [21]

Answer:

yes, it is a right triangle.

Step-by-step explanation:

trust

5 0
2 years ago
Kendra watched two movies. The first lasted 100 min. the second lasted 1 hour, 55 min. Which movie was longer? By how many min.?
dezoksy [38]
Firs movie was 100min
Second movie was 1h and 55min
1h is 60min
So 60+55=115
Ans:second movie was longer by 15min
8 0
3 years ago
Read 2 more answers
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