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FromTheMoon [43]
3 years ago
9

Solve for x 2(3x + 7) = 5 + 6x

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
3 0

Answer:

x = − 4 − √ 466 , − 4 + √ 46   6   Decimal Form:   x  =  0.46372166 … ,   − 1.79705499 …

Step-by-step explanation:

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A piggy bank is full of dimes and quarters. The total
Talja [164]

She has  27 quarters and 73 dimes.

Write a system of equations.

Let x be the number of quarters, and y be the number of dimes.

x+y=100

0.25x+0.10y=14.05

Solve by substitution:y=100−x

∴0.25x + 0.10(100 - x) = 14.05

0.25x+10−0.10x=14.05

0.15x+10=14.05

0.15x=4.05

x=27

Solve for y now:

y+27=100

y=100−27

y=73

Hence, She has 27 quarters and 73 dimes.

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions. The meanings of the word equation and its cognates in various languages can vary slightly. For instance, in French, an equation is defined as having one or more variables, whereas, in English, an equation is any well-formed formula that consists of two expressions linked by the equals sign.

Finding the values of the variables that cause the equality to hold true is the first step in solving an equation with variables. The unknown variables are also known as the variables for which the equation must be solved, and the unknown variable values that fulfill the equality are known as the equation's solutions. Equations come in two varieties: identities and conditional equations.

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brainly.com/question/10413253

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3 0
1 year ago
What is the inverse of function f? f(x)=10/9+11
Lena [83]

Answer:

Option D is answer.

Step-by-step explanation:

Hey there!

Given;

f(x) = 10/9 X + 11

Let f(X) be "y".

y = (10/9) X + 11

Interchange "X" and "y".

x = (10/9) y + 11

or, 9x = 10y + 99

or, y = (9x-99)/10

Therefore, f'(X) = (9x-99)/10.

<u>Hope</u><u> it</u><u> helps</u><u>!</u>

6 0
3 years ago
How to solve 6x&gt;-24 and 9x&lt;54 ?
djverab [1.8K]
6x>-25 and 9x<54the answer (solve x ) you have 6x>-25 so we solve 'x' we say divide by 6 both side then we get { x>-25/6 or x>-4.166} second you have 9x<54 we say divide by 9 each side { x<6 } your answer is { x>-25/6 and x<6 }
7 0
3 years ago
Between which two numbers will you find -3.25?
Vinil7 [7]

Answer:

A

Step-by-step explanation:

hope it helps

6 0
3 years ago
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For every pizza erics family ate, Eric ate 2 of the 8 pizzas, write the ratio of the total number of pieces Eric ate to the tota
andreev551 [17]

Answer:

1:4

Step-by-step explanation:

5 0
3 years ago
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