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aivan3 [116]
3 years ago
15

Please really need help on this thanks

Mathematics
2 answers:
VARVARA [1.3K]3 years ago
5 0
5X-20=4X+7

5X-4x=20+7

X=27°
bogdanovich [222]3 years ago
3 0
X= 27!! Yesssssssssss
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Does the value of x make the equation to 0. Why?
natka813 [3]

Answer:

Since there is no value of x that will ever make this a true statement, the solution to the equation above is “no solution”. Be careful that you do not confuse the solution x = 0 with “no solution”. The solution x = 0 means that the value 0 satisfies the equation, so there is a solution.

Step-by-step explanation:

3 0
3 years ago
Can some one help me out my grades are bad
Leya [2.2K]

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Go to the bottom of that problem and click save for later

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3 years ago
Solving inequalities for word problems:
zepelin [54]

For this case we have to:

x: Let the variable representing the unknown number

We algebraically rewrite the given expression:

Twice a number plus 10, is represented as:2x + 10

Three times that number less 4. is represented as:

3x-4

Thus, the complete expression is:

2x + 10> 3x-4

Subtracting 3x from both sides of the inequality:

2x-3x + 10> -4\\-x + 10> -4

Subtracting 10 from both sides of the inequality:

-x> -4-10

Equal signs are added and the same sign is placed:

-x> -14

We multiply by -1 on both sides, taking into account that the sense of inequality changes:

x

The solution is given by all values of "x" less than 14.

Answer:

x

5 0
3 years ago
Two important ingredients for baking bread are yeast and flour. To make a loaf of bread of at most 30 servings, maintain a yeast
IceJOKER [234]

Answer:

If 0.25 oz of yeast is used, then 50oz of flour is needed.

It would require 0.5 oz of yeast for 90 oz the flour.

Step-by-step explanation:

We know that the proportion of yeast (y) and flour (f) is 1: 200 when a maximum of 30 servings of bread is made. This is:

\frac{y}{f} = \frac{1}{200}

So if we use 0.25 oz of yeast:

y = 0.25\\\\y = (f)\frac{1}{200}\\\\0.25 = (f)\frac{1}{200}\\\\0.25 * 200 = f\\\\f = 50\ oz

if 0.25 oz of yeast is used, then 50oz of flour is needed.

If you make 60 servings of bread with 90 oz. Of flour, then you should keep the following ratio:

\frac{y}{f} =\frac{1}{180}

So, if we use f = 90 0z of flour:

f = 90\ oz\\\\f = 180y\\\\90 = 180y\\\\y = \frac{90}{180}\\\\y = 0.5\ oz

It would require 0.5 oz of yeast.

4 0
3 years ago
Dan has a favorite number his number has the digit 8 in the ones place and the digit 5 in the tens place. what is Dan favorite n
Licemer1 [7]
The answer would be 85...;)
7 0
4 years ago
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