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3 years ago

2y + 1 = 3y - 5 what is the answer to this equation

Mathematics

1 answer:

Maurinko [17]3 years ago

8 0

Step-by-step explanation:

2y-3y=-5-1
-y=-6
so, y=6

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Express the decimal 2.39 as a percent. <br> A. 23.9% <br> B. 240% <br> C. .239% <br> D. 239%

Assoli18 [71]

Solve:-

2.39 = decimal

2.39 × 100 = 239
239%

2.39 = C. 239%

6 0

3 years ago

Read 2 more answers

Sam needs 5/6 cups of mashed bannanas and 3/4 cups of strawberries.He wants to see if he needs more bannanas or strawberries.How

anygoal [31]

Answer:

5/6 = 10/12 and 3/4 = 9/12

Step-by-step explanation:

Find the GCF of the denominators, which is 12.

4 0

3 years ago

Find the width of a rectangular prism with a surface area of 250 square cm, a height of 5 cm, and a length of 10 cm. 15 cm 50 cm

oksian1 [2.3K]

Let, the width = w

We know, A = 2(lw + wh +hl )
250 = 2(10w + 5w + 50)
250 = 2(15w + 50)
250 = 30w + 100
30w = 250 - 100
w = 150/30
w = 5

In short, Your Answer would be Option C) 5 cm

Hope this helps!

8 0

3 years ago

Differentiating a Logarithmic Function in Exercise, find the derivative of the function. See Examples 1, 2, 3, and 4.

wlad13 [49]

Answer:

$\frac{dy}{dx}=\frac{x(1-2lnx)}{x^{4}}$

Step-by-step explanation:

To solve the question we refresh our knowledge of the quotient rule.

For a function f(x) express as a ratio of another functions u(x) and v(x) i.e

$f(x)=\frac{u(x)}{v(x)}\\$ , the derivative is express as

$\frac{df(x)}{dx}=\frac{v(x)\frac{du(x)}{dx}-u(x)\frac{dv(x)}{dx}}{v(x)^{2} }$

from $y=lnx/x^{2}$

we assign u(x)=lnx and v(x)=x^2

and the derivatives

$\frac{du(x)}{dx}=\frac{1}{x}\\\frac{dv(x)}{dx}=2x\\$ .

Note the expression used in determining the derivative of the logarithm function.it was obtain from the general expression of logarithm derivative i.e $y=lnx\\\frac{dy}{dx}=\frac{1}{x}$

If we substitute values into the quotient expression we arrive at

$\frac{dy}{dx}=\frac{(x^{2}*\frac{1}{x})-(2x*lnx)}{x^{4}}\\\frac{dy}{dx}=\frac{x-2xlnx}{x^{4}}\\\frac{dy}{dx}=\frac{x(1-2lnx)}{x^{4}}$

8 0

3 years ago

Vernice did not want to tell her age, so when she was asked, her mother answered for her. Her mother said, “I am double her age

Kisachek [45]

Answer:

Step-by-step explanation:

Let Vernice age be x

Her mother's age be 2x+10

10=1\2(2x+10) = 10×2=2x+10

20=2x+10

20-10=2x

10=2x

x=5

4 0

3 years ago

2y + 1 = 3y - 5 what is the answer to this equation ​

2y + 1 = 3y - 5 what is the answer to this equation