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
Leona [35]
3 years ago
7

2x+15=145 Solve for x

Mathematics
1 answer:
Ganezh [65]3 years ago
6 0

Answer:

Step-by-step explanation:2x=145-15

2x=130

X=130/2

X=65

You might be interested in
How many divisors of 63 are also divisors of 72? (Recall that divisors may be positive or negative.)
frutty [35]

1, 3, 9 and -1, -3, and -9 i guess

hope this helps

8 0
3 years ago
Solve the problem<br> -4p - 4p
Minchanka [31]

\bold{Hey\  there!}

\bold{-4p - 4p = \ ?}\\\ \bold{-4 - 4 = -8}\\\bold{-p - p = -p}\\\bold{-4p - 4p=\underline{-8p}}\\\boxed{\boxed{\bold{Answer: -8p}}}\checkmark

\text{\bold{Good luck on your assignment and enjoy your day!}}

~\frak{LoveYourselfFirst:)}

6 0
2 years ago
Read 2 more answers
(CO6) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is
satela [25.4K]

Answer:

(1) (4.82, 4.98)

(2) Large sample size

(3) Yes, the temperature is within the confidence interval of (37.40, 37.60)

(4) (15.083, 15.117)

Step-by-step explanation:

Confidence Interval (CI) = mean + or - (t×sd)/√n

(1) mean = 4.9, sd = 0.35, n = 68, degree of freedom = n-1 = 68 - 1 = 67

t-value corresponding to 67 degrees of freedom and 95% confidence level is 1.9958

CI = 4.9 + (1.9958×0.35)/√68 = 4.98

CI = 4.9 - (1.9958×0.35)/√68 = 4.82

CI is (4.82, 4.98)

(2) Error margin = (t-value × standard deviation)/√sample size

From the formula above, error margin varies inversely as the square root of the sample size. Since the relationship between the error margin and sample size is inverse, increase in one (sample size) will conversely lead to a decrease in the other (error margin)

(3) mean = 37.5, sd = 0.6, n= 100, degree of freedom = n-1 = 100-1 = 99

t-value corresponding to 99 degrees of freedom and 90% confidence level is 1.6602

CI = 37.5 + (1.6602×0.6)/√100 = 37.5 + 0.10 = 37.60

CI = 37.5 - (1.6602×0.6)/√100 = 37.5 - 0.10 = 37.40

37.53 is within the confidence interval (37.40, 37.60)

(4) mean = 15.10, sd =0.08, n = 104, degree of freedom = n-1 = 104-1 = 103

t-value corresponding to 103 degrees of freedom and 97% confidence interval is 2.2006

CI = 15.10 + (2.2006×0.08)/√104 = 15.10 + 0.017 = 15.117

CI = 15.10 - (2.2006×0.08)/√104 = 15.10 - 0.017 = 15.083

CI is (15.083, 15.117)

4 0
3 years ago
The function f(x) = x2 + 10x – 3 written in vertex form is f(x) = (x + 5)2 – 28. What are the coordinates of the vertex?
MrRa [10]
The vertex of the quadratic equation is (-5, - 28). In vertex form, y = a(x - h)2<span> + </span><span>k, (h, k) is the vertex of the equation.</span>
5 0
3 years ago
Read 2 more answers
HALT! DON'T MOVE A MUSCLE! CLICK HERE AND HELP ME OUT?! BRAINLIEST ANSWER INCLUDED! it costs $10 to place an advertisement in th
SashulF [63]

The ordered pairs are probably (0,10) and then (-1,5).

7 0
3 years ago
Other questions:
  • A cylinder has a radius of 3 cm and a height of 24 cm. What is the total surface area for both circles of the cylinder? Use 3.14
    9·1 answer
  • One number is twice another number and their sum is 36. which system of equations represents the word problem? 2x y = 36 and x y
    7·2 answers
  • HUDSON HAS TO FILL A POT WITH 1 QUART OF WATER. ALL HE HAS IS 1/4 CUP MEASURING CUP. HOW MANY TIMES DOES HE HAVE TO FILL THE 1/4
    9·2 answers
  • Hey can you please help me posted picture of question
    9·1 answer
  • Solve the following system in three variables using linear combinations. 3x−2y+z=0 4x+y−3z=−9 9x−2y+2z=20
    7·1 answer
  • Im so confused PLEASE HELP ASAP
    10·2 answers
  • At a graduation dinner, an equal number of guests were seated at each of 12 large tables, and 8
    14·1 answer
  • HELP IM TIMED. ILL MARK BRAINLIEST!
    13·2 answers
  • Find the length of AB
    9·2 answers
  • Please help me with math
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!