All categories

3 years ago

Add. 7/4+9/-5 wrote your answer as a fraction in simplest form

Mathematics

2 answers:

IgorLugansk [536]3 years ago

5 0

Answer:

7/4 + 9/-5 =

Since the denominator of the second fraction is negative the sign will change from negative to positive

We will get

7/4 - 9/5

First find the LCM

LCM of 4 and 5 is 20

7/4 - 9/5 = 5(7) - 4(9)/ 20

Simplify

We get

35 - 36/20

= -1/20

Hope this helps

kondor19780726 [428]3 years ago

4 0

Answer:

-1/20

Step-by-step explanation:

7/4 + -9/5

We need a common denominator, which is 20

7/4 *5/5 + -9/5 *4/4

35/20 + -36/20

Add the numerators together

-1/20

You might be interested in

(WORTH ALOT OF POINTS)

Gekata [30.6K]

Answer: A vertex contains an infinite number of points, and a point does not have width or depth.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

If 6^4x = 82, what is the value of x?<br> Round your answer to three places.

neonofarm [45]

Answer:

$x=0.61485921$

Step-by-step explanation:

The given equation is in exponential form:

$6^{4x} =82$

To find $x$ we need to write it in logarithmic form:

$b^{a} =n$ ⇒ $log_{b} n=a$

$6^{4x} =82$ ⇒ $log_{ 6 } 82=4x$

$2.45943684 = 4x$

$\frac{2.45943684}{4} = x$

$0.61485921 =x$

To prove this, we can substitute the value into the given equation

$6^{4x} =82$

$6^{4(0.61485921)} =82$

$82=82$

Therefore, the answer is $x=0.61485921$

6 0

3 years ago

Explain how to write 3x3/8 as a product of a whole number and a unit fraction

Sonja [21]

Hi there!

To write 3 x 3/8 as a unit fraction it is 9/8.

To write 3 x 3/8 as a whole number it is 1 1/8.

Explanation:

When you multiply 3 x 3/8 you get 9/8.

But when you make it to a proper fraction you get 1 1/8.

Hope this helps ;)

3 0

3 years ago

2(5-8x-9x)+4(7x+7)=14

xenn [34]

Step-by-step explanation:

if you are solving for X' it is X=4

8 0

3 years ago

Find the area bounded by the graphs of the indicated equations over the given interval.

NeX [460]

Answer:

Step-by-step explanation:

$y = 0$

is basically the horizontal axis.

First, find the integral of x^2-25.

Remember that

integral of a constant is that constant times x.

Also that

to take the integral of a power function, add 1 to the degree and divide by that same degree.

$y = {x}^{2} - 25$

We then get

$\frac{ {x}^{3} }{3} - 25x$

Evaluate at -3

$\frac{ - 3 {}^{3} }{3} - 25( - 3)$

$- 27 + 75 = 48$

Then we evaluate at 0

$\frac{0 {}^{3} }{3} - 25(0) = 0$

Next, we subtract the the answer then we get

$48 - 0 = 48$

8 0

2 years ago