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kodGreya [7K]
3 years ago
15

If 5x +1 = 21, then x = what?

Mathematics
2 answers:
inessss [21]3 years ago
4 0

Answer:

Your answer is going to be x=4.

Step-by-step explanation:

5x+1=21

    -1  -1

(5x)/5=(20)/5

x=4

elena-s [515]3 years ago
4 0
X would probably equal 4?
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Micah sketches the graph below to represent a scenario his teacher gave him.
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Answer:

Valerie has $2 and then earns $1 per week (where x is the number of weeks) in allowance, for a total of y dollars.

Step-by-step explanation:

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3 years ago
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A recipe that makes 4 servings calls for Two-thirds cup of flour. How much flour is required to make 20 servings?
love history [14]
The answer is 3 and one third!
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6 0
3 years ago
Hey guys I don’t understand this one so can y’all please help me? :))))
aksik [14]

Answer:

11) c = 16.1

12) c = 11.4

Step-by-step explanation:

11)

a² + b² = c²

8² + 14² = c²

64 + 196 = c²

c² = 260

\sqrt{c^2} =\sqrt{260}

c = 16.1

12)

a² + b² = c²

7² + 9² = c²

49 + 81 = c²

c² = 130

\sqrt{c^2} =\sqrt{130}

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6 0
3 years ago
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Solve the equation 6w2 – 7w – 20 = 0.
azamat

For this case we have the following quadratic equation:

6w ^ 2-7w-20 = 0

Where:

a = 6\\b = -7\\c = -20

Its roots will be given by:

w = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}\\w = \frac {- (- 7) \pm \sqrt {(- 7) ^ 2-4 (6) (- 20)}} {2 (6)}\\w = \frac {7 \pm \sqrt {49 + 480}} {12}\\w = \frac {7 \pm \sqrt {529}} {12}\\w = \frac {7 \pm23} {12}

The roots are:

w_ {1} = \frac {7 + 23} {12} = \frac {30} {12} = \frac {15} {6} = \frac {5} {2}\\w_ {2} = \frac {7-23} {12} = \frac {-16} {12} = - \frac {8} {6} = - \frac {4} {3}

Answer:

w_ {1} = \frac {5} {2}\\w_ {2} = - \frac {4} {3}

7 0
3 years ago
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In a right triangle the side c opposite the right angle is called the hypotenuse, and the other two sides a and b are
RSB [31]

Answer:

The hypotenuse of the triangle measures 13 inches.

Step-by-step explanation:

Since the Pythagorean theorem states that in any right triangle the lengths of the three sides are related by the equation A ^ 2 + B ^ 2 = C ^ 2, to determine the length of the hypotenuse in a right thangle with legs 5 inches and 12 inches the following calculation should be performed:

5 ^ 2 + 12 ^ 2 = X ^ 2

25 + 144 = X ^ 2

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Therefore, the hypotenuse of the triangle measures 13 inches.

4 0
3 years ago
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