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
BabaBlast [244]
3 years ago
12

PLEASE HELP!!!! 25-30 points! : )

Mathematics
1 answer:
Mamont248 [21]3 years ago
3 0
(13 - b) / 6 = (2 - 0.5b) / 4
cross multiply
6(2 - 0.5b) = 4(13 - b)
12 - 3b = 52 - 4b
-3b + 4b = 52 - 12
b = 40 <==
====================
(x - 9) / 3 = 5/13
cross multiply
13(x - 9) = 3 * 5
13x - 117 = 15
13x = 15 + 117
13x = 132
x = 132/13
===================
(w + 14) / (4w + 6) = 3/4
cross multiply
3(4w + 6) = 4(w + 14)
12w + 18 = 4w + 56
12w - 4w = 56 - 18
8w = 38
w = 38/8 which reduces to 19/4
=====================
(x - 8) / 5 = 2/4
cross multiply
4(x - 8) = 2 * 5
4x - 32 = 10
4x = 10 + 32
4x = 42
x = 42/4 which reduces to 21/2
===================
sorry but I am not exactly sure how to " explain " my answers


You might be interested in
Rosa can run 4 miles in 56 minutes. how many miles does rosa run is she runs for 42 minutes
Setler [38]
3 miles in 42 minutes
5 0
3 years ago
Read 2 more answers
Laura made $273 for 13 hours of work.
Bezzdna [24]

If she wants to earn $91, you would need to divide $91 by 13 to determine the number of hours she needs to work:

$91 /13 = 7 hours

She would have to work 7 hours.

7 0
3 years ago
What is the equation of the axis of symmetry?
Yuki888 [10]

Answer:

For a quadratic function in standard form, y=ax2+bx+c

the axis of symmetry is a vertical line x=−b2a .

Step-by-step explanation:

Hope this helps !

8 0
3 years ago
F(x)=2+3cosπ10(x−3)Find f(47).
Illusion [34]
  f(x) = 2 + 3cos(10π(x - 3))
f(47) = 2 + 3cos(10(3.14)(47 - 3))
f(47) = 2 + 3cos(31.4(45))
f(47) = 2 + 3cos(1413)
f(47) = 2 + 3(0.891006524)
f(47) = 2 + 2.673019573
f(47) = 4.673019573
7 0
4 years ago
Read 2 more answers
PLESE HELP I WILL MARK BRAINEST PLEASE
FrozenT [24]

Answer:

a) 23.0769% increase

b) 9.375% decrease

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • a boy circles 16 km in an hour and a girl runs 4.4 m in a second which is faster using study of rate​
    13·2 answers
  • Write an equation of the line
    15·1 answer
  • I NEED HELP ... SOLVING FOR ANGKE MEASURES OF RIGHT TRIANGLES
    9·1 answer
  • 3. Based on the diagram, what can you conclude and why?
    11·1 answer
  • Plzzzz HELP ASAP <br><br> IMAGE ABOVE THXXXX^^
    13·1 answer
  • Write an equation for line L in point-slope form and slope-intercept form.
    13·1 answer
  • A university president believes that over the past few years, the mean age of students attending his university has decreased. T
    13·1 answer
  • What are the solutions to the system of equations graphed below?
    13·1 answer
  • F
    13·1 answer
  • The initial size of the population is 300. After 1 day the population has grown to 800. Estimate the population after 6 days. (R
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!