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
frozen [14]
3 years ago
5

How to do linear equations 27, 28,28,30

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
6 0
#27.  
First cross multiply
2 (2a-3) = 3 (a-1)
next use the distribute property on both sides
4a - 6 = 3a - 3
combine like terms, subtract 3a from both sides and add 6 to both sides
a = 3

#28
cross multiply
3x = 4, then divide both sides by 3
x = 4/3

#30
add 1/4 to both sides
3/x = 1/2 + 1/4, find a common denominator for the right side fractions
3/x = 2/4 + 1/4 = 3/4
therefore, x = 4
You might be interested in
In a right triangle, one acute angle is 22º and the hypotenuse is 70 cm. Find the
meriva

Answer:

Adjacent leg (In relation to the angle that is measure 22 degrees)= 70*Cosine 22 or 64.9; Opposite leg (In relation to the angle that is measure 22 degrees)=70* Sin 22 or 26.22

Step-by-step explanation:

The other angle measure is 90-22 or 68.

To find the length of the adjacent leg (a) use cosine. Remember cosine is Adjacent leg over hypotenuse.

Cosine 22= a/70- Multiply by 70

70* Cosine 22=a or about 64.9

To find the length of the opposite leg (o) use sine. Remember sine is Opposite leg over hypotenuse

Sine 22= o/70

70*Sine 22=o

o= about 26.22

4 0
3 years ago
Find the value of x.
posledela

Answer:

<u>x = 50°</u>

Step-by-step explanation:

2x = 140 - 40

2x = 100

x = 100/2

<u>x = 50°</u>

8 0
3 years ago
Read 2 more answers
PLZZZZ answer correctly!! it's IMPORTANT!!
lara [203]

This is what I got and hopefully it helps.

1.A The dot is not filled and it points in the left direction

2.B The dot is filled and it points to the left

3.A The dot is not filled and it is pointed in the left direction

4.C The dot is filled and is pointing in the right direction.

Whenever you have a filled dot it will always be a greater than or equal to or less than or equal to. When the dot is not filled, the answer will always be greater than or less than.


4 0
3 years ago
7a-5b+4<br> a=2, b=3 and c=-6
KengaRu [80]

Answer: 3

Step-by-step explanation:

the statement given us:

7a-5b+4

a= 2

b= 3

so we have:

7*(2)-5*(3)+4

14-15+4 = 3

the answer is 3

6 0
4 years ago
Write an equation in slope intercept form of the line that passes through the points (2.6) and (-4,-2).
Katena32 [7]
Not sure if this is the right answer but try math-way it helps me a lot.

8 0
3 years ago
Other questions:
  • 2 times the square root of 7 to the 2nd power
    13·2 answers
  • What is the volume of a sphere with a diameter of 4 meters? (Use 3.14 for π.)
    7·1 answer
  • Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that forthe afternoon shift 5
    8·1 answer
  • If x + 4y = 18 and x - 4y = 2, then x =? <br><br> A) 2<br><br> B) 4 <br><br> C) 5<br><br> D)10
    9·1 answer
  • Look for a Pattern Identify the coordinates of four points on the line with
    5·1 answer
  • A bottle of tomato ketchup contains 250g and cost 1.30. how much would 1kg cost
    10·1 answer
  • Find the formula <br> Plug in values <br> Volume
    11·1 answer
  • A recipe calls for 1/3 cup of sugar for 1 batch. How many batches can be made with 2 cups of sugar?
    15·2 answers
  • 3 Ingrid earns $200 each week in salary plus a 20% commission (bonus) on her total sales. If Ingrid wants to earn a total of $40
    9·2 answers
  • What are the solutions to 2(x-6)2 = 50 ?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!