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
LenaWriter [7]
2 years ago
14

9. Solve the equation. Check your solution, if possible. 1.5x + 1.3x = -8.4

Mathematics
2 answers:
Maksim231197 [3]2 years ago
6 0

Answer:

-3

Step-by-step explanation:

1.5x + 1.3x = -8.4

2.8x = -8.4

x=-3

NARA [144]2 years ago
5 0
<h2><u>Required Answer</u>:</h2>

As per the provided question, we have to find the value of x. So, we can easily find the value of x by transposition method.

\sf \red { 1.5x + 1.3x = -8.4 }

\sf  {\implies 2.8x = -8.4 }

\sf  {\implies x =\dfrac{ -8.4 }{2.8}}

\sf  {\implies x =\dfrac{ -84 \times \cancel{10} }{28 \times \cancel{10}}}

\sf  {\implies x =\dfrac{ -84 }{28}}

\sf  {\implies x = -3} \purple {\bigstar}

<h3>Let's check it too by verifying it! </h3>

<h2><u>Verification</u>:</h2>

Just substitute the value of x in L.H.S .

\sf \red { 1.5x + 1.3x = -8.4 }

Therefore

\sf  {\implies  1.5(-3) + 1.3(-3)= -8.4 }

\sf  {\implies  -4.5+ (-3.9)= -8.4 }

\sf  {\implies  -4.5-3.9= -8.4 }

\sf \purple {\implies  -8.4= -8.4 }

\sf {\therefore L.H.S= R.H.S }

<h2>So, done! </h2>
You might be interested in
In a school 2/3 parts of the total numbers of students. 3/10 parts are between 8 to 12 years and the remaining are above 12 year
ANEK [815]

3/10

As you know the answer already I don't think you need any further explanation :)

5 0
2 years ago
What is the y-value for f(x) = cos(x) when x = 180°?<br> -1<br> 0<br> 1/2<br> 1
maksim [4K]
You start at 0 on the unit circle the cos of 0 =1, but at cos 0 there is no angle at all so there is no y value so at cos 0 y=0, 180 is the opposite direction of the starting point which is 0 so the x value of cos180= -1 but there is still no upward or downward angle ie.. y value. so the y value = 0 at 0 and 180. answer is 0
8 0
2 years ago
(a) Find the perimeter of the shape below. (Take π =<br>22/7)<br>3cm<br>3cm<br>12cm<br>20cm​
MariettaO [177]
Try 20cm








it’s correct
3 0
3 years ago
Tom opens a bank account and makes an initial deposit of $500. The banker tells Tom that he is going to receive
Katena32 [7]

Bank balance after 15 years is $950

Step-by-step explanation:

  • Step 1: Find the simple interest on the principal amount using the formula SI = PRT/100 where Principal (P) = $500, Rate of Interest (R) = 6% and Time(T) = 15 years

⇒ SI = 500 × 6 × 15/100 = $450

  • Step 2: Find total amount using the formula Amount = P + SI

⇒ Amount = 500 + 450 = $950

7 0
3 years ago
Which solid has a greater volume? O A. Figure A 48 B. Figure B O C. they are equal A 2 O D. need more information​
MatroZZZ [7]

9514 1404 393

Answer:

  B.  Figure B

Step-by-step explanation:

The figure is difficult to read. We assume the height of the pyramid is 9, and the radius of the cylinder is 1.

The pyramid volume is ...

  V = 1/3Bh

  V = 1/3(4²)(9) = 48 . . . cubic units

__

The cylinder volume is ...

  V = πr²h

  V = π(1²)(48) = 48π . . . cubic units

The cylinder has π times as much volume as the pyramid. Figure B is larger.

_____

<em>Additional comment</em>

If the diameter (not the radius) of the cylinder is 1 unit, then its volume is 12π cubic units and the pyramid has more volume.

7 0
3 years ago
Other questions:
  • Solve the problem by writing a variation model. The distance that a car can go varies directly as the number of gallons of gasol
    12·1 answer
  • The probability of spinning blue on victor's spinner is 1. Which word best describes the chance of spinning blue on victor's spi
    7·2 answers
  • If the first equation is multiplied by 3 and then the equations are added, the result is _____.
    7·1 answer
  • Simplify<br> 9 to the power of 2 <br> Over <br> 9 to the power of 7
    5·1 answer
  • The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error . Round your answer, if appropri
    13·1 answer
  • In the expression 6^8 what does the exponent show
    9·1 answer
  • The circumference of a circle is 60 pi cm. What is the radius of the circle?​
    5·1 answer
  • Which erosional force acts alone to produce avalanches and landslides?
    10·1 answer
  • 37+6x-33-7x<br> i need help i cant find the answer
    12·2 answers
  • If x=2 y=4 a=3 b=6 and c=2 find the value of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!