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JulijaS [17]
3 years ago
11

Divde 3/4÷5/7 what was the error 5/7÷3/4=5/7*4/3=20/21

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
3 0

he change 3/4 instead of 5/7

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an electric wire which is 0.12 m long is cut into 3 pieces of the same length.How long is each pieces?​
grigory [225]

Answer:

0.04m

Step-by-step explanation:

0.12/3=0.04

6 0
3 years ago
Read 2 more answers
Solve the equations PLEASEE<br><br> -1=3x-2<br><br> -3x=9<br><br> -10=-5x
Ilia_Sergeevich [38]

Answers are in bold:

-1=3x-2

add 2 to both sides

-1+2=3x-2+2

1=3x

divide both sides by 3

1÷3=3x÷3

1/3=x

-3x=9

divide both sides by -3

-3x÷-3=9÷-3

x=-3

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divide both sides by -5

-10÷-5=-5x÷-5

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I hope this is good enough:

6 0
3 years ago
A hose fills a hot tub at a rate of 4.26 gallons per minute. How many hours will it take to fill a 265-gallon hot tub?
Studentka2010 [4]

Answer: Divide the volume of the bath tub by the rate at which the hose folks the bath tub

 

Time = 251/ 4.86

 

= 51.64 hours

Step-by-step explanation:

7 0
3 years ago
Choose two values, a and b, each between 8 and 15. Show how to use the identity a^3+b^3=(a+b)(a^2-ab+b^2) to calculate the sum o
qaws [65]

Answer:

Step-by-step explanation:

a = 8

b  = 10

a^3 =8^3 = 512

b^3= 10^3 =1000

a^3 + b^3 = 1512

a^2 = 64

-ab = - 80

b^2 = 100

a + b=18

(a + b) (64 -  80+ 100)

18 * (84)

1512'

5 0
3 years ago
7a-17=4a+1 what's the solution to this problem
BabaBlast [244]
7a-17=4a+1
7a-4a=1+17
3a=18
a=6

ans: a=6
3 0
3 years ago
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