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
Dennis_Churaev [7]
2 years ago
15

il a positive number decreased by 5, then it is 84 times of its reciprocal. Find the number? op 10, 11, 12, 13​

Mathematics
1 answer:
Alenkasestr [34]2 years ago
6 0

Answer:

x = 12

Step-by-step explanation:

x - 5 = 84/x

x² - 5x = 84

x² - 5x - 84 = 0

x = (5 ±√(5² - 4(1)(-84))) / 2

x = (5 ± 19) / 2

x = -7 ignore

x = 12

You might be interested in
A bus and a truck leave a gas station at the same time and are headed to the same destination. If the bus traveled 110 miles in
cupoosta [38]

Answer:

The truck

Step-by-step explanation:

the bus --- 110/2=55 miles per hour

the truck --- 180/3=60 miles per hour

therefore the truck travels faster

7 0
2 years ago
Read 2 more answers
(1.2 x 10^13) - (4 x 10^11)
Alexandra [31]

Answer:

the answer is 11,600,000,000,000

Step-by-step explanation:

pemdas

(1.2 x 10 ^13) - (4 x 10 ^11)

10^13 = 10,000,000,000,000 put that in scientific notation to make it simpler do same for 10 ^11

10 x 10^13

(1.2 x 10 x 10^13) - ( 4 x 10 x 10^11)

now solve the first equasion

12,000,000,000,000 - 400,000,000,000

subtract

11,600,000,000,000

3 0
3 years ago
Point x is located at (-2,-6) and point z is located at (0,5). Find the y value for the point y that is located 1/5 the disteanc
Sedaia [141]

Answer:

-3 1/2


Step-by-step explanation:

We have to find the distance between x and z along the y-axis.

This will be: 5 - -6 = 11 units

1/5  of 11 = 1/5 × 11

                 = 11/5

                 = 2 1/5

Now add 2.5 to -6

2 1/2 + -6 = -3 1/2

The value of y = -3 1/2

8 0
3 years ago
All integer are rational number. true or false? please explain
Elenna [48]

true because integers are all positive numbers, their opposites (negatives), and zero

3 0
3 years ago
Read 2 more answers
What kind of function is this? F(1)=5, f(x)=2•f(x-1)
Tasya [4]
Evaluate f(1) then set equal to 5.
No solution
4 0
3 years ago
Other questions:
  • Lincoln Middle School plans to collect more than 2000 cans of food in a food drive. So far, 668 cans have been collected. Write
    9·1 answer
  • - Emily hiked along a trail that is
    10·1 answer
  • $0.90 for 3/4 pound of bananas
    15·2 answers
  • There are 4 red and 6 green marbles in a jar. What is the probability of drawing two green marbles, with replacement?
    7·1 answer
  • Marlon is mixing blue paint and yellow paint in the ratio of 2:3 to make green paint. If he uses 8 liters of blue paint, how man
    11·1 answer
  • I need your help....pleeeease!
    15·1 answer
  • Jill bought 3 cookies and 2 cupcakes for $12.25. Kim bought 5 cookies and 1 cupcake for $14.00.
    12·2 answers
  • Just help tbh I’m tired
    13·2 answers
  • Plssss help and really quick!!!!!!!
    14·2 answers
  • What are composite numbers out of 49, 35, 32, 41, and 47​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!