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
leva [86]
3 years ago
12

— 3х + 7 < 19 ? Help plz

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
8 0
<h2>-3x + 7 < 19</h2>

Just like any of your two-step equations, in this inequality,

start by isolating the x term which in this case is -3x by

subtracting 7 from both sides.

This gives us -3x < 12.

Solving from here, we divide both sides by -3.

However, when solving inequalities, you need to watch out.

When you divide both sides of an inequality by a negative number, you must switch the direction of the inequality sign.

Please give this idea your full attention. Even the most advanced algebra students will sometimes forget to switch the direction of the inequality sign when dividing both sides of an inequality by a negative.

So we end up with <em>x > -4</em>.

Maksim231197 [3]3 years ago
6 0

Answer:

x > -4

Step-by-step explanation:

— 3х + 7 < 19

Subtract 7 from each side

— 3х + 7-7 < 19-7

-3x < 12

Divide each side by -3, remembering to flip the inequality

-3x/-3 > 12/-3

x > -4

You might be interested in
I need a answer A.S.A.P PLEASE WILL GIVE 19 POINTS
Ipatiy [6.2K]

Answer:

Okie when you do these you got to give all information

Step-by-step explanation: because people can help you instead of looking at a picture wonderin what they are they are supposed to do

3 0
3 years ago
3. Define a variable, write an equation, and solve the problem. Carla began a
faust18 [17]

Answer:

Carla has been running 7 miles each day for 13 days.

Step-by-step explanation:

Carla ran 3 miles on her first day, 5 miles on her second day and then 7 miles each day onward.

Let the number of days she ran 7 miles each day = x

Total distance run by Carla = 3 + 5 + 7(x)

                                             = 8 + 7x

If her log book shows that she has run total distance = 99 miles

Equation representing her total run will be,

8 + 7x = 99

7x = 99 - 8

7x = 91

x = \frac{91}{7}

x = 13 days

Therefore, Carla has been running 7 miles each day for 13 days.

3 0
3 years ago
The ratio of Sara and Laila age was 5:4. 2 years later their ratio is 6:5. What is their current ages?
coldgirl [10]

Answer:

do no

Step-by-step explanation:

6 0
3 years ago
Which table represents a function that does not have a constant rate of change
Aloiza [94]

Answer:

I might be able to help you if you add a picture

8 0
3 years ago
Problem solving your family has a rectangular pool that measures 18 feet by 9 feet. your family wants to put a deck around the p
tester [92]
Let w be the width of the deck. Then, using the total area, we get:
(9+2w)(18+2w)=400
4w²+54w-238=0
2w²+27w-119=0
(2w-7)(w+17)=0
w=-17 or 7/2
Using the positive value, we get a width of 3&1/2 ft. for the deck
☺☺☺☺
7 0
3 years ago
Other questions:
  • Difference of two squares <br> Calculate this <br> 81-(3x-2)^2<br> ^2= to the power of 2
    15·1 answer
  • An 18ft ladder leans against a house, reaching a point 14ft above the ground. How far is the foot of the ladder from the bottom
    10·2 answers
  • PLEASE HELP?<br> I don’t know why but I’m so lost.
    9·1 answer
  • 2 questions
    14·1 answer
  • You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta
    11·1 answer
  • PLEASE HELP!!!!⚠️<br> the last equation is “3/5x=12” if you can answer that as well thank you.
    15·2 answers
  • If X || Y and Y || Z, then ___.
    5·1 answer
  • Solve for x.<br><br><br><br> A. 9<br> B. 42<br> C. 10<br> D. 12
    7·2 answers
  • 1<br> _ x 5 Please explain<br><br><br> 4
    12·1 answer
  • Please help i will mark brainliest
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!