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Dafna1 [17]
2 years ago
11

What is the answer to 4m+7=-3m+49

Mathematics
1 answer:
solong [7]2 years ago
8 0
4m + 7 = -3m + 49
4m + 3m = 49 - 7
7m = 42
m = 42/7
m = 6

So, your final answer is 6

Hope this helps!
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a student played a computer game 500 times and won 370 of these game. he then won the next "x" games and lost none. he has now w
a_sh-v [17]

So, this is a proportion problem. If we express 75% as a fraction (3/4ths), we have:

\frac{370+x}{500+x}=\frac{3}{4}

Since he won all of his games, we add the number won (x), to the number previously won and divide it by the total games played which is just the previous games played plus the number of current games played, so since he lost no games we still add x to the denominator as well. Solving this gives us:

4(370+x)=3(500+x) \implies\\ 1480+4x=1500+3x \implies \\ x=20

That x value is 20.

3 0
2 years ago
HELP!!!!! WILL MARK BRAINLIEST 10 POINTS
vichka [17]
Josh is incorrect, he did not examine the expression correctly, therefore his answer was wrong.

7 0
3 years ago
What is the Value of x
Ugo [173]

Answer:

x = 11

Step-by-step explanation:

A segment parallel to a side of a triangle cuts off proportional segments on the sides.

48/6 = (3x + 7)/5

8 = (3x + 7)/5

3x + 7 = 40

3x = 33

x = 11

8 0
1 year ago
Step 1 -3(3x+5)-6<6
Mnenie [13.5K]
Error is between steps 4 and 5. It should say:

Step 4: -9x < 27
Now divide by -9
Step 5: x > -3
Note that the inequality changes direction.
When you mean multiply or divide an inequality by a negative number, the inequality changes direction.

For example:
4 < 5
Multiply by -1:
-4 > -5

Another example:
-5 < 0
5 > 0
6 0
3 years ago
What is this "√", called?
Katyanochek1 [597]

That is called square root


6 0
3 years ago
Read 2 more answers
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