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
bulgar [2K]
3 years ago
14

If 5a=-4b+5 and 3a=-2b+3, what is 6b?

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0
There are two equations and two variables. You can solve for each variable using either the elimination method or the substitution method. Here, I believe the elimination method would be best:
5a = -4b + 5
3a = -2b + 3
You can multiply the second equation by two, so the 4b and -4b in both equations will cancel each other out when you add them. So:
5a = -4b +5
6a = 4b +6
Add both equations together.
11a = 11
a = 1
Plug in the a value into any of the previous equations:
5(1) = -4b + 5
-4b = 0
b = 0
So, since we know that b = 0, 6b is also 0.
You might be interested in
Allen's daily regular wage is P1,420. This coming Christmas, his boss is asking him to work for 14 hours. How much is his DAILY
VMariaS [17]

Using proportions, it is found that his DAILY RATE on that particular day is of Php 2,420 .

  • This question is solved by proportions, using a <em>rule of three.</em>
  • In a regular 8-hour day, Allen earns Php 1420. How much will he earn on a 14 hour day?

The <em>rule of three</em> is:

8 hours - Php 1420

14 hours - x

Applying cross multiplication:

8x = 1420 \times 14

x = \frac{1420 \times 14}{8}

x = 2485

The closest option is Php 2,420.

A similar problem is given at brainly.com/question/24372153

7 0
3 years ago
At a certain time of day, a 30-foot building casts a 10 foot shadow. How tall is a person who casts a 2 foot shadow?
Anni [7]

Answer:

C)  6 feet

Step-by-step explanation:

set up a proportion of height/shadow = height/shadow

30/10 = h/2

cross-multiply:

10h = 60

h = 6

4 0
2 years ago
Read 2 more answers
In the 2005 regular season, the Chicago White Sox won 28 more games than the Detroit Tigers. Together, they won a total of 170 g
melomori [17]
White Sox: 113
Tigers: 57 games
4 0
3 years ago
What is k(8) for the function k(n)=0.007n ?
IrinaVladis [17]
The is answer is K=0.000875
6 0
3 years ago
Neve built the following graph to model the flight of a rocket from Earth to outer space. Which of the following domains is appr
Inga [223]

Answer:

A

Step-by-step explanation:

Because its the most reasonable answer

3 0
3 years ago
Other questions:
  • Y=−x−1 the point (0, −1)lies on the graph of the equation. the graph of the equation is the set of points that are solutions to
    6·1 answer
  • Amanda and Lucy got a phone bill for $60. LUCY Uses the phone more
    10·1 answer
  • A company specializes in custom home resales in an exclusive subdivision. A random sample of nine custom homes currently listed
    10·1 answer
  • The circumference of a circle is 32 cm. Which is the closest to the radius?
    8·1 answer
  • What is the value of the rational expression below when x is equal to 4? x+20/x+4
    8·1 answer
  • Triangle 1 is a scale drawing of Triangle 2, as shown below.
    5·2 answers
  • what is an art and a science that deals with the collection,organization,creative presentation and analysis of data? A.physics B
    5·1 answer
  • Compare the graph of g(x) = 6x2 with the graph of f(x) = x2.
    14·1 answer
  • A home is purchased for $60,000 in 2001 and sold for $225,000 in 2021. Plot this on a graph. Then draw 2 lines, 1 mapping a line
    15·1 answer
  • Find the inverse function of
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!