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
Neko [114]
3 years ago
11

What is the value of v?

Mathematics
2 answers:
Afina-wow [57]3 years ago
6 0

Answer:

The value of v is 9.5.

Step-by-step explanation:

Given : Equation \frac{4}{5}(v-7)=2

To find : What is the value of v?

Solution :

Step 1 - Write the equation,

\frac{4}{5}(v-7)=2

Step 2 - Multiply 5/4 both side,

\frac{4}{5}(v-7)\times \frac{5}{4}=2\times \frac{5}{4}

v-7=\frac{5}{2}

Step 3 - Add 7 both side,

v-7+7=\frac{5}{2}+7

v=\frac{5+14}{2}

v=\frac{19}{2}

v=9.5

Therefore, The value of v is 9.5.

sammy [17]3 years ago
5 0
Basically, this is saying that 80% of (x) = 2 so you have know what the whole would be. It would be 2.5 because 80% of 2.5 is 2. So because you are subtracting 7 from v to get 2.5, you have to add 2.5 to 7 to get v. V=9.5
You might be interested in
n automobile manufacturer claims that its van has a 37.4 miles/gallon (MPG) rating. An independent testing firm has been contrac
JulsSmile [24]

Answer:

Then z(s) is out of the acceptance region, we reject H₀,  doubts of the independent testing firm are valids

Step-by-step explanation:

We will develop a Hypothesis Test ( a 2 tail test since the independent testing firm is interested in finding out  if there is an incorrect MPG rating from the manufacturer

Test Hypothesis :

Null hypothesis                             H₀            μ    =    μ₀

Alternative Hypothesis                Hₐ             μ    ≠    μ₀

Significance Level   α  = 0,05    α/2  =  0,025

z(c) for α/2   from z-table      z(c)  = - 1, 96   and by symmetry  z(c) = 1,96

Calculating  z(s)

z(s) =  ( μ  -  μ₀ ) / σ /√n

z(s) = ( 37,8 - 37,4 ) / 2,3 /√280

z(s) = 0,4 * 16,73 / 2,3

z(s) = 2,90

Comparison between z(c)  and  z(s)

z(s) > z(c)       2,90 > 1,96

Then z(s) is out of the acceptance region, we reject H₀,  doubts of the independent testing firm are valids

8 0
2 years ago
Distance between -18 and -4
JulijaS [17]

Hey there! I'm happy to help!

To find the distance between two numbers, you simply subtract them!

-18--4

-18+4 (two negatives makes a positive)

-14.

Have a wonderful day! :D

4 0
3 years ago
What is the value of x in the equation 2(x−3) 9=3(x 1) x? x = −3 x = −1 x = 0 x = 3
Masja [62]

The solution of the linear equation is x = 0.

<h3>What is the linear equation?</h3>

An equation is a mathematical statement, which has an equal sign (=) between the algebraic expression.

Linear equations are the equations of degree 1.

The given linear equation is;

\rm 2(x-3)+ 9=3(x+ 1) +x

The value of x is determined in the following steps given below.\rm 2(x-3)+9=3(x+1)+x\\\\2x-6+9=3x+3+x\\\\\ 2x+3=4x+3\\\\3-3=4x-2x\\\\0=2x\\\\x=0

Hence, the solution of the linear equation is x = 0.

To know more about linear equations click the link given below.

brainly.com/question/5085290

8 0
2 years ago
Gaseste substantivele din textul urmator si analizeaza-le dupa modelul dat.Fusul imi sfaria pe la urechi.Ma uitam la cer printre
Jet001 [13]
Puede hablar al menos un poco de inglés
7 0
3 years ago
The graph shows a reflection in the x-axis. The matrix M such that, for any point (x, y), M(x, y) = (x', y') is
Rashid [163]

Answer:

This is a reflection about the x-axis.


Step-by-step explanation:

A reflection about the x-axis has the rule

[x,y]-> [x,-y].

Therefore

M[x,y] = [x,-y}

Let M=

|a  b|

|c  d|

Then the matrix multiplication gives

ax+by=x.............(1)

cx+dy=-y............(2)

Solving the previous equations (1) and (2) gives

a=1, b=0

c=0, d=-1

giving M as

|1  0|

|0 -1|


4 0
3 years ago
Other questions:
  • WHAT IS A GEOMETRIC SEQUENCE?
    8·2 answers
  • give an example of a repeating decimal where two digits repeat. explain why your number is a rational number
    10·1 answer
  • Mr. Diaz has 347 apple trees in his orchard. He has 162 more apple trees than peach trees in his orchard . How many peach trees
    5·1 answer
  • Started at 20° and dropped 4° each minute
    10·2 answers
  • matthew hiked 4 miles in 2 hours. at this same rate what is the total number of miles matthew could hike in 6 hours
    6·1 answer
  • Greg drew a pair of parallel lines and a line segment next to each other on a chalkboard.
    13·1 answer
  • Please help me, I am struggling!!
    7·1 answer
  • Pls let me know in 5 min or I’m dead
    9·2 answers
  • Given cosΘ=2/3 and sinΘ&gt;0, find sinΘ
    6·1 answer
  • According to the Marshall’s survey, 80 sixth graders, or 40% of the students in sixth grade like to have school remote. How many
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!