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
vaieri [72.5K]
3 years ago
14

A/2 - 1/2 and please explain!!

Mathematics
1 answer:
Tema [17]3 years ago
8 0

We need to know that:

\frac{a}{b}-\frac{c}{d}=\frac{a.d-b.c}{b.d}

\frac{a}{2}-\frac{1}{2}=\frac{a.2-2.1}{2.2}=\frac{2a-2}{4}=\frac{a-1}{2}

You might be interested in
Jada and lin are comparing inches and feet. Jada says that the constant of proportionality is 12. Lin says it is 1/12
Oksi-84 [34.3K]

Answer:

Jada compared ratio of feet to inches while Lin compared ratio of inches to feet.

Step-by-step explanation:

Let

Inches = x

Feet = y

Constant of proportionality = k

ratio of feet to inches

x = ky

1 feet = 12 inches

12 = k * 1

k = 12/1

k = 12

Ratio of inches to feet.

y = kx

1 = k * 12

k = 1/12

Jada compared ratio of feet to inches while Lin compared ratio of inches to feet.

5 0
3 years ago
What is the value of w?
kotegsom [21]
R u in connections?.........
4 0
3 years ago
Line l is defined by the equation y – 5x = 4 and line w is defined by the equation 10y + 2x + 20 = 0. if line k does not interse
Sliva [168]
Slope of line l (m1)=5
Slope of line w(m2)=-1/5
Since,m1×m2=-1 , line 'l' and 'w' are perpendicular.
Since line 'k' doesn't intersect line 'l' ,they must be parallel b'coz they are in the same plane as well.
Here, 'l' is perpendicular to 'w' and parallel to 'k'....so w and k must be perpendicular to each other.
It can be proven:
Since l and k are parallel, their slopes are equal.
So, slope of k (m3)=5
Since m3×m2=-1 ,w and k are perpendicular.
Hence, angle between w and k is 90°
7 0
3 years ago
one seventh of 42 people ate pancakes, two thirds ate pancakes and eggs, the remaining ate eggs only. which fraction represent t
gtnhenbr [62]
(1/7)*42=6
(2/3)*42=28
6+28=34
42-34=8
8/42=4/21
your answer is 4/21
8 0
3 years ago
The function f is defined by f(x) = 2x^2–5.<br> Find f (5x).
Margarita [4]

Answer: f(5x)=(50x^2)-5

Step-by-step explanation:

f(5x)=2(5x)^2-5

=2(25x^2)-5

=50x^2-5

6 0
3 years ago
Other questions:
  • ,<br><br> Solve each equation. Check your solutions.<br> 5+ x/2=16
    6·2 answers
  • 4. Apply the rules for order of operations to simplify 2 + 3 − 4 + (5 × 4).
    13·2 answers
  • Can someone please solve this for me and help me
    15·1 answer
  • Tinley is training to run a half-marathon. She sets a pace so that every mile takes
    7·1 answer
  • Juanita has saved 25% of the money that she needs to buy a new bicycle.
    6·2 answers
  • What is the linear equation to this? Please show your work. I can take images if you want.
    7·1 answer
  • PLEASE HELP PLEASE!!!!! NO LINKS!!!
    14·1 answer
  • The volume of a cone is 62.8 cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the n
    7·2 answers
  • Can someone help please help me with this math problem:):)
    6·1 answer
  • Please help!!!!!!!!!!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!