The reciprocal of 5 less than a number is 4 times the reciprocal of twice the number. find the number.

1 answer:

6 0

5 less than the number is x - 5
The reciprocal is 1/(x - 5)

This number is 1/(x - 5) = 4(1/(2x)) Cross multiply.
2x = 4*(x - 5) Remove the brackets.
2x = 4x - 20 Subtract 2x from both sides
0 = 4x - 2x - 20
0 = 2x - 20 Add 20 to both sides
20 = 2x Divide by 2
20/2 = x
10 = x

You might be interested in

BRAINLIEST ANSWER!!!!!

Shkiper50 [21]

Hmm....
I know that the first answer is a coin, but I'm not too sure about the second one.

8 0

2 years ago

Read 2 more answers

Find the length of the segment indicated. Round to the nearest tenth if necessary.

Aleksandr-060686 [28]

Answer:

x=5

Step-by-step explanation:

x is the length of the line segment from the center to the boderline of circle. So x=5

3 0

2 years ago

BRAINLIEST<br> please solve 8 x 1/3 and show work!

Alenkasestr [34]

8 x $\frac{1}{3}$

= $\frac{8}{1}$ x $\frac{1}{3}$

= $\frac{8 x 1}{1 x 3}$

= $\frac{8}{3}$

4 0

1 year ago

Read 2 more answers

Plz help asp.................

Vsevolod [243]

Answer:

J,L M,O R,H

Step-by-step explanation:

5 0

2 years ago

he doorsill of a campus building is h = 5 feet above ground level. To allow wheelchair access, the steps in front of the door ar

rusak2 [61]

I believe there is a picture of the situation missing, but we still have all the info necessary to solve.
We take the height, 5, and divide by the slope, 1/12, getting 60. This is the length of the ramp.

60 feet<span />

3 0

2 years ago