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3 years ago

Solve for x 11/12=10/3x+5-3/4x

Mathematics

2 answers:

Mazyrski [523]3 years ago

6 0

Answer:

x = −49/31

Step-by-step explanation:

Luda [366]3 years ago

6 0

The answer is: x= - 49/31

Step by step:

11/12=10/3x+5-3/4x

Simplify 10/3x to 10x/3
11/12 = 10x/3 + 5 - 3/4x

Simplify 3/4x to 3x/4
11/12 = 10x/3 + 5 - 3x/4

Simplify 10x/3 + 5 - 3x/4 to 31x/12 + 5
11/12 = 31x/12 + 5

Subtract 5 from both sides
11/12 - 5 = 31x/12

Simplify 11/12 - 5 to - 49/12
- 49/12 = 31x/12

Multiply both sides by 12
- 49/12 * 12 = 31x

Cancel 12
- 49 = 31x

Divide both sides by 31
- 49/31 = x

Switch sides
x = - 49/31

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3 years ago

Human body temperatures have a mean of 98.20° F and a standard deviation of 0.62°. Sally's temperature can be described by z = -

STALIN [3.7K]

Answer:

$97.27^{o}F$

Step-by-step explanation:

We have been given that human body temperatures have a mean of 98.20° F and a standard deviation of 0.62°. Sally's temperature can be described by z = -1.5.

To find Sally's temperature we will use z-score formula.

$z=\frac{x-\mu}{\sigma}$ , where $\mu$ = Mean, $\sigma$ = Standard deviation.

Let us substitute our given values in z-score formula.

$-1.5=\frac{x-98.20}{0.62}$

Multiply 0.62 to both sides of equation.

$0.62\times-1.5=0.62\times \frac{x-98.20}{0.62}$

$-0.93=x-98.20$

Add 98.20 to both sides of equation.

$-0.93+98.20=x-98.20+98.20$

$97.27=x$

Therefore, Sally's temperature will be 97.27 degrees Fahrenheit.

4 0

3 years ago

Read 2 more answers

Write an expression that shows how to multiply 7x256 using expanded form

Dennis_Churaev [7]

7(2x100)+(5x10)+(6x1)

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3 years ago

Is this a polynomial -x + 11

svetlana [45]

<span>In mathematics, a polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables. ~ wikipedia

if it had negative exponents, division, square roots, etc, it would not be a polynomial,

the equation shown however is a polynomial.</span>

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3 years ago

PLS HELP **80 POINTS**

TEA [102]

$\huge\pink{Answer}$

radius = 12/2

r = 6ft

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3 years ago

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