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zzz [600]
3 years ago
13

-m/3+6=12 need help please

Mathematics
1 answer:
Aleks04 [339]3 years ago
8 0

Answer:

m = -18

Step-by-step explanation:

-m/3 + 6 = 12

Subtract 6 from both sides

-m/3 = 6

we have to isolate x, to do that we use inverse operation

-m/3 = 6

multiply 3 on both sides of the equation

-m= 18

we can't leave the variable negative so we divide by -m on both sides to make the -m positive.

m= -18

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Jose is training for a marathon.If he ran 160.2 miles in january, 163.2 miles in February, 157.8 miles in march, and 159 miles i
SVETLANKA909090 [29]

Answer: I think it's 960.

Step-by-step explanation:

Add up all of the numbers:

(160.2+163.2+157.8+159) = 640.2

Find the average by diving 640.2 by how many numbers there are:

640.2 ÷ 4 = 160.05

Round that average^^:

160.05 >>> 160

Multiply by how many numbers there will be:

In this case, your job is to estimate how far Jose ran in 6 months, not just those 4. So instead of multiplying the average (160) by 4, you'd multiply it by 6.

160 x 6= 960

3 0
3 years ago
How do you solve this 3x-4=3x-5
Basile [38]
Combine like terms so 3x + 3x= 6x
Then put the minus signs with the 4 and 5 and add them together so -4+ -5= -9
Now you have 6x=-9 So you divide by 6 on both sides canceling out 6
but 9 divided by 6 doesn't go into a specific number therefore it has no solution which is a possible answer
4 0
4 years ago
4+h less than equal to 7
Vanyuwa [196]
H is less than or equal to 3....subtract 4 from 4 and then from 7
4 0
3 years ago
Read 2 more answers
13.) Describe and correct the error in solving the equation.
Julli [10]
I think you’d have to multiply both sides to the equation by 10

So that’d make it 2x + 5 = 10

2x = 10 - 5
x = 5/2


Hope this helps
6 0
3 years ago
Betty collected 400 food packages for charity. She gave g packages to an orphanage, and distributed the rest equally among 4 cha
Mariana [72]
So this is an equation.
The starting value is the given value 400.
She gave g packs to the orphanage, so she now has 400-g packages. 
Then she divides that by 4 and gives to 4 different charities.
The answer is (400-g)÷4
Hope this helps!
5 0
4 years ago
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