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
matrenka [14]
3 years ago
15

Which equation represents seven times a number decreased by 2 is 19? A)   7 + x -­ 2 = 19 B)   7x + 2 = 19 C)   2x - ­ 7 = 19 D)

   7x - ­ 2 = 19
Mathematics
1 answer:
Helen [10]3 years ago
4 0

Answer:

7n - 2 = 19

Step-by-step explanation:

7 times a number is 7n.

7 times a number, decreased by 2, is 7n - 2.

7 times a number, decreased by 2, is 19  is represented by 7n - 2 = 19

You might be interested in
Explain how you would graph the line containing a slope of-1/5 that goes through the point (1,-4)​
madam [21]

Answer:

y= -1/5x + 1/5

Step-by-step explanation:

y- y1 = m(x - x1)

Slope m=-1/5

(1, -4)

1 = y1

-4 = x1

y- 1 = -1/5(x-(-4))

y-1 = -1/5(x+4)

y-1= -1/5(x)+ -1/5(4)

y-1 = -1/5x + -4/5

add one to both sides

y= -1/5x + -4/5 + 1

y = -1/5x + 1/5

8 0
4 years ago
In 1990, the average monthly bill for cellular telephone service was $80.90. From 1990-1997, the monthly bill decreased by 8.6%
lapo4ka [179]

A)The formula for the average monthly cellular telephone bill in terms of the year will be A = 80.90(0.914)ⁿ⁻¹

B)The average monthly bill in 1993 willl be $ 61.77

<h3>What is the percentage?</h3>

The quantity of anything is stated as though it were a fraction of a hundred. A fraction of 100 can be used to express the ratio.

The formula for the average monthly cellular telephone bill in terms of the year willl be,

A=P(R/100)ⁿ

A = 80.90(0.914)ⁿ⁻¹

The average monthly bill in 1993 is found as ;

n=4 for 1993

A=P(R/100)ⁿ

A = 80.90(0.914)³⁻¹

A=$ 61.77

Hence the formula for the average monthly cellular telephone bill in terms of the year will be A = 80.90(0.914)ⁿ⁻¹ and the average monthly bill in 1993 willl be $ 61.77.

To learn more about percentages, refer to:

brainly.com/question/13450942

#SPJ1

5 0
2 years ago
A(1)=-13<br> A(n)=a(n-1)+4<br> Find the 2nd term
Agata [3.3K]

Answer:

- 9

Step-by-step explanation:

Substitute n = 2 into the recursive formula, that is

A(2) = A(1) + 4 = - 13 + 4 = - 9

4 0
4 years ago
M and n are parallel lines cut by a transversal.<br> What is the value of x + y?
slava [35]

Answer:

180°

Step-by-step explanation:

It will be answer ...............

8 0
3 years ago
in the fall semester of 2003, the average graduate management admission test (GMAT) of the students at UTC was 500 with a standa
MAVERICK [17]

Answer:

The 2003 scores have a higher coefficient of variation, so they are more dispersed

Step-by-step explanation:

We have to find the coefficient of variation(CV) for both these tests.

CV = \frac{\sigma}{\mu}

In which \mu is the mean and \sigma is the standard deviation.

Whoever has the higher CV has the higher variation, that is, is more dispersed.

2003

\mu = 500, \sigma = 80

CV = \frac{\sigma}{\mu} = \frac{80}{500} = 0.16

2004

\mu = 560, \sigma = 84

CV = \frac{\sigma}{\mu} = \frac{84}{560} = 0.15

The 2003 scores have a higher coefficient of variation, so they are more dispersed.

3 0
4 years ago
Other questions:
  • |4b-4|+|3-b^3|+2b^3;b=2
    9·1 answer
  • Common denominator of 17/20
    14·2 answers
  • Find the volume of the composite figure. Round to the nearest hundredth
    10·2 answers
  • WILL GIVE BRAINLIEST.Which is an equation for the line shown?
    9·2 answers
  • Alexandra read 3/7 of the pages in her 112-page book. How many pages has she read already?
    12·1 answer
  • How many 3/4 pound packages can you make with 6.5 pounds of sunflower seeds?
    12·1 answer
  • The sum of 3 times the value of x and 2 is equal to 4 less than 5 times the value of x. Which equation can be used
    5·1 answer
  • Solve for b<br> b/2 - 5 =4<br> with steps
    13·2 answers
  • You dont need to explain the graph i got that but please help with the problem
    7·1 answer
  • Solve the equation below <br>m+4= -12<br>m=?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!