3 years ago

Given: 9yº Simplify the expression for y= 3. (show your work and explain your reasoning.)

Mathematics

1 answer:

Leto [7]3 years ago

6 0

The answer you are looking for is 27

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Solve the equation. 5 x minus 1 equals 14 A. x = 3 B. x = 4 C. x = 5 D. x = 15

Helen [10]

Answer:

Step-by-step explanation:

5x - 1 = x =4

4 0

3 years ago

4. Sandra has 35% of the money she needs. She has $105. How much more money does she need? Write the equation and solve.

guajiro [1.7K]

Answer:

36.75

Step-by-step explanation:

First is turn the percent into a decimal which would be 0.35.

Then multiply 0.35 with 105

Finally this would equal to 36.75

Note: Hope I got it right, if I didn't I am very sorry this is all I can really do. If I did get it wrong please comment and I'll try again.

5 0

3 years ago

Tju [1.3M]

Answer:

Step-by-step explanation:

Rationalize the denominator of b. So, multiply the numerator and denominator by $\sqrt{x}$

$b = \frac{(1-2\sqrt{x}) *\sqrt{x}}{\sqrt{x}*\sqrt{x} }=\frac{1*\sqrt{x} -2\sqrt{x} *\sqrt{x} }{\sqrt{x} *\sqrt{x} }\\\\=\frac{\sqrt{x} -2x}{x}\\$

Now, find a +b

$a +b = \frac{2x+\sqrt{x} }{x}+\frac{\sqrt{x} -2x}{x}\\\\=\frac{2x+\sqrt{x} +\sqrt{x} -2x}{x}$

Combine like terms

$= \frac{2x-2x+\sqrt{x} +\sqrt{x} }{x}\\\\=\frac{2\sqrt{x} }{x}$

Now find (a + b)²

(a +b)² = $(\frac{2\sqrt{x} }{x})^{2}$

$= \frac{2^{2}*(\sqrt{x} )^{2}}{x^{2}}\\\\= \frac{4* x}{x^{2}}\\\\= \frac{4}{x}$

Hint: $\sqrt{x} *\sqrt{x} =\sqrt{x*x}=x$

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3 years ago

Evaluate the expression 15g if g = 1/5.

kap26 [50]

Answer:

Step-by-step explanation:

15g

g=1/5

15×1/5

15/1×1/5=3

6 0

3 years ago

Read 2 more answers

The mass of a package sent through the mail is 3 kilograms what is the mass of the package in grams? Plz halp GAHAAHAHHAH

klasskru [66]

Answer:

3000 grams

Step-by-step explanation:

convert 3 Kg to G

4 0

2 years ago