1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
s344n2d4d5 [400]
3 years ago
6

What is the sum of the reciprocal of 1/-13 and the reciprocal of -1/2

Mathematics
1 answer:
murzikaleks [220]3 years ago
6 0

Answer:

-15

Step-by-step explanation:

1/-13

The reciprocal is

1/ 1/-13

Because of the law of indices,

We'll have 1 * -13

= -13.

-1/2

The reciprocal is

1 ÷ -1/2

Because of the law of indices,

We'll have 1 * -2

= -2

Therefore, the sum would be -13 + (-2) which would be equals to -15.

You might be interested in
It took Fred 17 days to save $36.55. At that rate, how long would it take him to save $70.95?
Vlad1618 [11]

Answer:

Fred would take 33 days to save $ 70.95.

Step-by-step explanation:

The number of days (t) is directly proportional to the quantity of money saved (c), in monetary units, then we can calculate the time taken to save $ 70.95 by simple rule of three:

t = 17\,d\,\times \frac{\$\,70.95}{\$\,36.55}

t = 33\,d

Fred would take 33 days to save $ 70.95.

4 0
2 years ago
Ricky can ride 17 km on his bike in the same length of time ha can walk 9 km.if his riding speed is 4 kph faster than his walkin
aivan3 [116]
Distance=speed times time
if they take the same time, we cal the time , t

b=bike speed
w=walking speed

bikedistnace=17=bt
walkdistance=9=wt

b is 4 more than w
b=4+w

we have
17=bt
9=wt
b=4w

ok so
multiply first equation by 9 and 2nd by 17

153=9bt
153=17wt
set equal
9bt=17wt
divide both sides by t
9b=17w
sub b=4+w for b
9(4+w)=17w
distribute
36+9w=17w
minus 9w both sides
36=8w
divide both sides by 8
4.5=w

he walks 4.5kph
5 0
3 years ago
A truck is carrying cranberry juice, grape juice, and pineapple juice bottles in a ratio of
satela [25.4K]

Answer:

140

Step-by-step explanation:

7- Cranberry

2:Grape = 40 so 40/2 = 1

3:Pineapple

1= 20 juices

7+2+3 is 12

20 x 12 is 140

8 0
2 years ago
Read 2 more answers
ABCD is a rhombus, where m∠AED = 5x – 10. Use the properties of a rhombus to determine the value of x. Question 10 options: A) x
fomenos

Answer:

A) x = 20

Step-by-step explanation:

ABCD is a rhombus, AC and BD are diagonals which intersect each other at point E.

Since, diagonals of a rhombus are perpendicular bisector.

\therefore \: m \angle AED = 90 \degree \\  \therefore \: (5x - 10) \degree = 90 \degree \\ \therefore \: 5x - 10 = 90  \\ \therefore \: 5x  = 90 + 10  \\ \therefore \: 5x  = 100  \\ \\  \therefore \: x  = \frac{100}{5}  \\  \\ \huge \red{ \boxed{ \therefore \: x  =20}}

5 0
3 years ago
Plan A cost $15 a month, including 200 free texts. After 200, they cost $0.15 each
hammer [34]
If your looking how to plot this on a graph idk but I know its something like 15.00x>200
 0.15y<200


I think... I'm not sure... but it would make sense lol :)
5 0
3 years ago
Other questions:
  • 2.2 * 10^-2 * 4 * 10^4 i need help asap im really confused
    5·1 answer
  • Evaluate −3x+5y when x=16 and y=14. Write your answer as a fraction in simplest form.
    15·1 answer
  • On the map of an amusement park on a coordinate grid, the skating rink is at (−1.5, −1).
    11·2 answers
  • Do what is on the attachments
    15·1 answer
  • 50 points if you can answer asap! :)
    6·1 answer
  • Typically, joseph buys a single tire at a time for his truck. however, he sees an advertisement for a buy 3, get 1 free offer fr
    10·2 answers
  • What is the complete factorization of x2 + 4x − 45?
    6·1 answer
  • The battery standby duration (in hours) of a new model of cell phone is known to be normally distributed. Ten pieces of such new
    10·1 answer
  • Find the area of the triangle
    9·1 answer
  • Pls pls pls help meee plssss
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!