The account charged 35 for the first hour of work and 23 for each hour after that. He earned a toatl od 127 how many hours did he work

Answers

Answer 1

Answer:

Answer:

He worked a total of 5 hours.

Step-by-step explanation:

The first hour the man makes $35 dollars for the first hour then for the other hours he earns $23 dollars, right? So we start off with 35.

35 = one hour.

35 + 23 = 2 hours . = 58.

35 + 23 + 23 = 3 hours. = 81.

35 + 23 + 23 + 23 = 4 hours. = 104.

35 + 23 + 23 + 23 + 23 = 5 hours. = 127.

We were looking for if the man earned $127 dollars how many hours would be be working.

He'd be working 5 hours.

Hope this helps (:

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By how much is (3/4 + 1/12 + 2/3) greater than 1

Answers

Hey there!

3/4 + 1/12 + 2/3

= 5/6 + 2/3

= 5/6 + 4/6

= 5 + 4 / 6

= 9 / 6

= 9 ÷ 3 / 6 ÷ 3

= 3/2
≈ 1.5

1.5 - 1 = 0.5

Therefore, your answer is: 0.5

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

What is the number of real solutions?-7x²-11x-2=0

One solution?
two solutions?
no real solution?
cannot be determined

Answers

Answer: [B]: Two (2) real solutions .
__________________________________________________________
Explanation:
__________________________________________________________
  Given:   -7x² − 11x − 2 = 0 ;
__________________________________________________________
  We see that it is in "quadratic format" ; that is:
__________________________________________________________
  " ax² + bx + c = 0 ; a ≠ 0 ; "
__________________________________________________________
Multiply the entire equation by "-1" ; to get rid of the "negative number" :
__________________________________________________________
→ -1 * {-7x² − 11x − 2 = 0} ;
__________________________________________________________
to get: → 7x²  + 11x + 2 = 0 ;
__________________________________________________________
This expression is written in the "quadratic format";

ax² + bx + c = 0 ; in which: a = 7 ; b = 11; c = 2 ;
__________________________________________________________
     The expression cannot be "factored"; so, we can solve for "x" ; by using the "quadratic equation formula" ;
__________________________________________________________

x = {-b ± √(b² − 4ac)} / {2a} ;
______________________________________
Let us solve for:  "(2a)" : 2a = 2 * a = 2 * 7 = 14 ;

Let us solve for: "(b² − 4ac)": 11² − 4*7*2 = 121 − 56 = 65;

→ √(b² − 4ac) = √65
______________________________________
  → " -b" = -11 ;
________________________________________________
So, x = (-11 ± √65) / 14 ;
________________________________________________
There are TWO (2) solutions:
_______________________________________________________
Solution 1) x = (-11 + √65) / 14 = - 0.2098387322643893071; AND:
_______________________________________________________
Solution 2) x = (-11 − √65) / 14 = -1.3615898391641821214 ;
_______________________________________________________
So, there are TWO (2) real solutions.
_______________________________________________________

Determine which representation corresponds to a decreasing speed with an increasing time.Simon drives faster as
Time Speed
Raphael rolls his ball
he enters the freeway
0
downhill.
0
from the entrance
2.
15
ramp.
4
25
6
45
(spl) poods
Ncho C
00
70
1 2 3 4 5 6 7 8
Time (s)
O

Answers

Answer:

the 3rd on edge

Step-by-step explanation:

i did it

Answer:

The 3rd one.

Time (S)

Prove that (x^5)-(x^2)+2x +3=0 has at least one real root.Prove that x=cosx has at least one solution.

Answers

The first one is of order 5, so it has either 1, 3 or 5 real roots (unless any coefficent was complex). Proof complete :)
The other one, if it has a solution, it must be in [-1;1]. Because it only gives positive results the solution is further restricted to [0;1]. Because the cosine function is continuous and strictly decreasing on this interval, the difference of x and it's cosine will shrink up to some point within the interval where it gets to 0 (the solution) and then flips sign (the cosine gets less than the number), further decreasing until the end of the interval.

Answer:

ok no cap

Step-by-step explanation:

Write a conjecture for the following situation - the product of three odd numbers.

Answers

Answer:

Step-by-step explanation:

Plz Hurry In which number is the value of the digit in the ten-thousands place 10 times the value of the digit in the thousands place?

A.

80,846

B.

68,486

C.

88,604

D.

64,808

Answers

D I’m pretty sure because 8 times itself = 64

Answer:

i think its D

Step-by-step explanation:

i think its D

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