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tester [92]
3 years ago
8

Value of 4m+7=-3m+49

Mathematics
1 answer:
NARA [144]3 years ago
8 0
4m+7= -3m+49

Subtract 7 from both sides

4m+7= -3m+49
      -7          -7
4m= -3m+42

Then add 3m to both sides

4m= -3m+42
+3m  +3m
7m=42

Then divide by 7 to get mm by itself

7m=42
m=6

Hope this helps!
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4x - 3y = 15<br> 2x + 2y = 4<br><br> what is the solution of the system of equations?
klio [65]

Answer:

System of Linear Equations entered :

  [1]    4x - 3y = 15

  [2]    2x + 2y = 4

Step-by-step explanation:

// Solve equation [2] for the variable  y  

 

 [2]    2y = -2x + 4

 [2]    y = -x + 2

// Plug this in for variable  y  in equation [1]

  [1]    4x - 3•(-x +2) = 15

  [1]    7x = 21

// Solve equation [1] for the variable  x  

  [1]    7x = 21  

  [1]    x = 3  

// By now we know this much :

   x = 3

   y = -x+2

// Use the  x  value to solve for  y  

   y = -(3)+2 = -1  

Solution :

{x,y} = {3,-1}  

6 0
3 years ago
TIME REMAINING 33:04 Jordan is using a number line to model the division expression Negative 24 divided by 12. What should be a
Lostsunrise [7]

Answer:

Draw a chain of bounces to the left, 12 units wide, starting at 0 and ending at –24.

7 0
3 years ago
What is the equation to solve this problem?
andrey2020 [161]

 

\displaystyle\bf\\x^2+x^2=10^2\\\\2x^2=19^2\\\\x^2=\frac{10^2}{2}\\\\ \sqrt{x^2}=\sqrt{\frac{10^2}{2}}\\\\x=\frac{10\sqrt{2}}{\sqrt{2}\times\sqrt{2}}\\\\x=\frac{10\sqrt{2}}{2}\\\\\boxed{\bf x=5\sqrt{2}~~~~~~Correct~ansver:~~D)}

 

 

5 0
3 years ago
(7.RP.3) When invested at an annual interest rate of 6% an account earned $180.00 of simple interest in one year. How much money
tresset_1 [31]

Answer:  f) $3,000


Step-by-step explanation:

Given: Simple interest amount S.I.= $180.00

The rate of interest annually= 6%

In decimal , the rate of interest annually r = 0.06

Time period t = 1 year

Let 'P' be the principal amount invested in account.

The formula to calculate simple interest is as :-

\text{Simple interest }=Prt

\\\Rightarrow180=P(0.06)\times1\\\\\Rightarrow\ P=\frac{180}{0.06}\\\\\Rightarrow\ P=\$3000

Hence, the principal amount invested in account = $3000

4 0
4 years ago
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was
Llana [10]

You must cross multiply:

2                  3

1378             ?


2x = 1378(3)

2x = 4134

x = 2067


The total would be 2067


Hope I helped! ;)



6 0
4 years ago
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