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
FrozenT [24]
3 years ago
11

Help me pls and ty !

Mathematics
1 answer:
Naya [18.7K]3 years ago
7 0

Answer:

a=2.6-3.4b

Step-by-step explanation:

So we have the equation:

2.2a+3.4b=1.2a+2.6

And we want to solve for a.

So, subtract 1.2a from both sides:

(2.2a+3.4b)-1.2a=(1.2a+2.6)-1.2a\\1a+3.4b=2.6

Now, subtract 3.4b from both sides:

(a+3.4b)-3.4b=2.6-3.4b\\a=2.6-3.4b

And that's our answer :)

You might be interested in
Compute the sales tax for the prices and rates given below. Price Tax Rate Tax $299 4% $6,750 7% $76.50 5.2% $18.32 3.9% $5.95 6
serious [3.7K]

Answers:

Price        Tax Rate        Tax

$299         4%                 $11.96

$6,750      7%                 $472.5

$76.50      5.2%              $3.98

$18.32       3.9%              $0.71

$5.95        6.2%              $0.37

$13.89       4.3%              $0.60

$768.43    3.7%              $28.43

$6.49        5.8%              $0.38

$23.86      7.1%               $1.69

$12.98      3.9%              $0.51


Explanation;


Sales tax is computed as the product of the price times the tax rate in % divided by 100:


  • Sales tax = price × tax rate / 100

Here is each compute:


  • $299 × 4% = $299 × 4/100 = $11.96
  • $6,750 × 7% = $6,750 × 7/100 = $ 472.50
  • $76.50 × 5.2% = $76.50 × 5.2/100 =  $3.98
  • $18.32 × 3.9% = $18.32 × 3.9/100 = $0.71
  • $5.95 × 6.2% = $5.95 × 6.2/100 = $0.37
  • $13.89 × 4.3% = $13.89 × 4.3/100 = $0.60
  • $768.43 × 3.7% = $768.43 × 3.7/100 = $28.43
  • $6.49 × 5.8% = $6.49 × 5.8/100 = $0.38
  • $23.86 × 7.1% = $23.86 × 7.1/100 = $1.69
  • $12.98 × 3.9% = $0.51

8 0
3 years ago
Write equibalent fraction for 2/3 and 3/4 using 12 as the common denominator
iogann1982 [59]

Answer:

2/3 = 8/12

3/4 = 9/12

Step-by-step explanation:

whatever you do to the denominator, you have to do the the numerator.

2/3 - 3 times 4 equals 12 and 2 times 4 = 8. so 2/3 = 8/12

3/4 - 4 times 3 equals 12 and 3 times 3 equals 9. so 3/4 = 9/12

hope this helps!!!

6 0
3 years ago
This is the first step in which construction?
slavikrds [6]

Answer:

Option A is correct.

Step-by-step explanation:

The first step in the construction of a square inscribed in a circle is to draw a diameter of the circle.

Then we have to draw perpendicular bisector of the diameter using a compass.

Therefore, the perpendicular bisector will be another diameter of the circle and both the diameters will meet at the center of the circle.

Now, join the points with straight lines in order where the two diameters meet the circle. And finally, we will get a square inscribed in the circle.

Hence, option A is correct. (Answer)

5 0
3 years ago
PLEASE HELP WITH THIS EASY MATH QUESTION!! it’s down below!!!!!!
ivanzaharov [21]

Answer:

1

Step-by-step explanation:

x^2 + 2x + 1 = (x+1)^2

3 0
4 years ago
Read 2 more answers
Write an equivalent algebraic equation for the sentence below.
artcher [175]

Answer:

7x = x - 4 (or 6x = -4 if you want to simplify)

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • PLEASE HELP! 20 POINTS!
    9·2 answers
  • What is the answer to 5.06 by 47.058
    14·1 answer
  • What degree slope is a 16' ramp with a 35" rise
    6·1 answer
  • 12. A pack of cinnamon-scented pencils sells for $4.00. What is the sales tax rate if the total cost of the pencils is $4.32?
    14·1 answer
  • I need help what’s the answer?
    9·2 answers
  • Question 3 please :) (exact values)
    8·1 answer
  • Draw a line representing the "rise" and a line representing the "run" of the line. State
    9·2 answers
  • Double 2, then divide b by the result
    14·1 answer
  • What is slope (mathmatical slope) explain
    9·2 answers
  • Mrs. Greenaway has decided to open a new preschool in her town. To decide whether she will have enough students to be successful
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!