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3 years ago

What is the value of x in the equation 3x4y=65, when y=4

Mathematics

2 answers:

Artist 52 [7]3 years ago

8 0

Answer:

16.33333333333333333333333333333................

Step-by-step explanation:

First, set up the equation with the known y value like so, 3x+4(4)=65

Next, multiply: 3x+16=65

Then, subtract 16 from both sides: 3x=49

Last, divide both sides by three:x=16.33333333333333333333333333.......

I hope this helps you

If i am right a thanks or brainliest would be appreciated, if i am wrong please leave a comment

bixtya [17]3 years ago

5 0

Answer:

The value of x if the equation is

3x + 4y=65

x = 49/3 or 16.3

3x - 4y=65

x= 27

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KatRina [158]

Answer: Third Option

$x=1.469743$

Step-by-step explanation:

We have the following exponential equation

$3^{x+1}=15$

We must solve the equation for the variable x

To clear the variable x apply the $log_3$ function on both sides of the equation

$log_3(3^{x+1})=log_3(15)$

Simplifying we get the following:

$x+1=log_3(15)$

To simplify the expression $log_3 (15)$ we apply the base change property

$log_b(y)=\frac{log(y)}{log(b)}$

This means that:

$log_3 (15)=\frac{log(15)}{log(3)}$

Then:

$x+1=\frac{log(15)}{log(3)}$

$x=\frac{log(15)}{log(3)}-1$

$x=1.469743$

6 0

3 years ago

Please help me i really need it<br><br><br> 3y + 4 + 10 ÷ 4x x 12 ÷ 9 = ?

nekit [7.7K]

I got 3y + 4 + 10x / 3

7 0

3 years ago

Sandra owns a rectangular pice of farmland that is 2/3 miles wide and has an area 5/9 square mile what is the leght of sandras f

Rzqust [24]

Answer:

5/6 mile

Step-by-step explanation:

The formula for the area of a rectangle can be used with the given values to write an equation for the length of the farmland.

Here is the equation for the area of a rectangle.

A = LW . . . . . area is the product of length and width

When we fill in the area and width, we have ...

5/9 mi² = L(2/3 mi) . . . . . equation for the length of the farmland

Solving this equation gives ...

L = (5/9)/(2/3) mi . . . . . . . . divide by the coefficient of L

L = (5/9)/(6/9) mi = 5/6 mi . . . . . perform the division

The length of Sandra's farmland is 5/6 mile.

6 0

2 years ago

if area of a circle varies directly as the cube of the radius, when the area is 625cm the radius is 5cm. calculate the area of a

Maksim231197 [3]

Answer:

as the above condition....

5×5×5=625

same,, applying for 8 cm

8×8×8=512cm..

8 0

3 years ago

Find the length of side AB. Round your answer to the nearest tenth:

Blizzard [7]

Answer: 3.1

Step-by-step explanation:

7 0

2 years ago