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
podryga [215]
3 years ago
8

Find the value of 3v- 10 given that 2v- 7 = 9

Mathematics
2 answers:
marishachu [46]3 years ago
7 0

Answer:

14

Step-by-step explanation:

2v - 7 = 9

Add 7 to both sides

2v = 16

Divide both sides by 2

v = 8

Plug it into 3v - 10

3v - 10 =

3(8) - 10 =

24 - 10 =

14

nydimaria [60]3 years ago
4 0

Answer:

14

Step-by-step explanation:

2v-7=9

2v=16

v=8

3(8)-10=14

You might be interested in
Plz help it’s very confusing
zepelin [54]
So the total is 120. You want 1/6 of those. 
So do (1/6)*120
You get 20.

YAY
6 0
3 years ago
14. Write a two-column proof.
scZoUnD [109]

Given:

\bold{ 8x=4y-20} \\\\ \bold{ y=13}

Prove:

\bold{x=4}

Solution:

\to \bold{8x=4y-20}..........(i)\\\\\to \bold{ y=13}........................(ii)

Putting the value of equation (ii) into the equation (i):

\to \bold{8x=4(13)-20}\\\\\to \bold{8x=52-20}\\\\\to \bold{8x=32}\\\\\to \bold{x=\frac{32}{8}}\\\\\to \bold{x= 4}\\\\

putting the value x into the equation (i):

\to \bold{8(4)=4y-20}\\\\\to \bold{32=4y-20}\\\\\to \bold{32+20=4y}\\\\\to \bold{52=4y}\\\\\to \bold{y=\frac{54}{4}}\\\\\to \bold{ y= 13.5}

Therefore, the value of x= 4

Learn more:

brainly.com/question/6219408

3 0
2 years ago
9(14-5)-42 evaluate expression
Ulleksa [173]

Good evening

Answer:

<h2>39</h2><h2 />

Step-by-step explanation:

9(14-5)-42 = 9×9 - 42

                = 81 - 42

                = 39

________________

:)

8 0
2 years ago
Can someone help me figure out the answer?
olga_2 [115]

Answer:

y = -2x +15

Step-by-step explanation:

The point-slope form of the equation for a line through (h, k) with slope m is ...

... y - k = m(x - h)

For your point (h, k) = (5, 5) and slope m = -2, the equation in point-slope form is ...

... y - 5 = -2(x - 5)

Simplifying, we get

... y - 5 = -2x +10

Adding 5 puts the equation into slope-intercept form, as you want.

... y = -2x +15

8 0
3 years ago
Please help me, I don’t understand!
Debora [2.8K]

Answer:

y=9x+7

Step-by-step explanation:

the number in front of x is always the slope and the number after it is the Y intercept where the line first crosses the Y axis

4 0
2 years ago
Other questions:
  • Blairs new computer cost 5$ less than twice the cost og her old computer. Her new computer cost 709$. how much did blairs old co
    15·1 answer
  • What is the formula of the area of any triangle
    8·2 answers
  • 3 1/8% in simplest form
    12·2 answers
  • Last year at Sarah's bakery she sold 38 birthday cakes for $57 per cake . She spent 1/2 of that money on ingredients for baking
    6·1 answer
  • Evaluate each expression for the given value of the variable. 4(d + 7); d = 2
    12·1 answer
  • Which of the following terms is best described as the point halfway between
    15·1 answer
  • What is the value of the expression when a=18 and b=14 ?
    14·1 answer
  • 359, 352,345,...<br> {Find the 38th term.}
    15·1 answer
  • How do i solve 3000 divide by 12
    8·2 answers
  • 3 times the sum of 7 and 8 is divided by 9​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!