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
skelet666 [1.2K]
3 years ago
12

I need help on 1/2/3/4

Mathematics
1 answer:
vaieri [72.5K]3 years ago
5 0

You may need to sit down with your parents or with your teacher and
go over how to add and subtract fractions.

1).  "Perimeter" means the distance all the way around the square.
With a square, all 4 sides are the same length.  With <u>this</u> square,
every side is 1-1/4 inches long.

Perimeter = length of all 4 sides= (1-1/4) + (1-1/4) + (1-1/4) + (1-1/4) =

                                               (1 + 1 + 1 + 1) + (1/4 + 1/4 + 1/4 + 1/4) =

                                                         4           +             4/4  =  <em>5 inches</em> .

2).  (2-3/8) + (1-7/8) = (2 + 1) + (3/8 + 7/8) =

                                        (3)   +    (10/8) =

                                         3    +      1-1/4 =        <em>4-1/4 .</em>

3).  The difference is  (1-1/6) minus (5/6) .

Before you start to do the subtraction, write the (1-1/6)  as  (7/6) .

Then the subtraction is    (7/6) - (5/6)  =  2/6  =  <em>1/3</em> .

4).  This one is almost the same kind of problem as #3. 
It's another subtraction.

If you need (2-1/4) all together, and you already have (1-3/8),
then the amount you still have to find, or borrow, or buy, is the
difference between those two numbers.

           (2-1/4) minus (1-3/8) .

The trick is to write the (2-1/4) in some form that you'll be able to
subtract (1-3/8) from it.  When I learned how to do that, it was called
'borrowing', but I think now it's called 'regrouping'.

We need to work on (2-1/4):

-- take 1 from the 2, and change it into fourths.
 
                 2-1/4  =  1 and 4/4 and 1/4  =  1 and 5/4

-- Now, take those 5/4, and turn them into eighths.                
   Each fourth makes 2 eighths.  So  5/4  =  10/8.

Now, the (2-1/4) has turned into  1-10/8 .
We did NOT change the value.  It's still the same amount
as 2-1/4 , but it's just written in a different way.
And now the subtraction is easy:

         (2-1/4) minus (1-3/8)  = 

       (1-10/8) minus (1-3/8)  =  (zero and 7/8).

You need  <em>7/8 inch</em>  more string than you already have.

         

You might be interested in
Consider the quadratic function f(x)=−x2−6x−4, which has been given a restricted domain, as shown in the following graph.
Delicious77 [7]
Domain:
(−∞,∞),{x|x∈R}
All reall numbers
7 0
3 years ago
Your friend dvr cost $328 less then her tv her dvr cost 1.79 write and find out how much her tv cost
In-s [12.5K]

Answer:

1.79+328

Step-by-step explanation:

1.79+328

the dvr is 1.79 and it is 328 less than the tv, so if you add the 2 together you will get the cost of the tv

4 0
3 years ago
Can anyone help me ?
Over [174]
Hi! So, here’s what I know. Every triangle will equal to 180*. So to check if that triangles is 180 we add all angles and it should add up to 180*.

Now the question is, Why it shows that the angles of a triangle equal to 180* when added up?

Note that we see all angles lie on a straight line, therefore we know that when we add angles that lie on a straight line it will equal to 180*, they will also meet at the same point.

This is all I can help with. Hope it helped something!!! Have a great day!
7 0
2 years ago
What are the integer solutions to the inequality below?
Dmitry [639]

3 < 3x - 3 ≤ 2x + 2

Adding -3 to each side gives

0 < 3x - 6 ≤ 2x - 1

The left inequality says

0 < 3x - 6   ⇒   3x > 6   ⇒   x > 2

while the right inequality says

3x - 6 ≤ 2x - 1   ⇒   x ≤ 5

Then the solutions belong to the interval 2 < x ≤ 5 and contains only the integers x = 3, x = 4, and x = 5.

5 0
2 years ago
Part A: Write an algebraic expression for 6 more than 7 times a number. (5 points) Part B: Write a verbal expression for 3(n + 8
Ymorist [56]
Part a: 7x+6
part b: 3 times the sum of a number and 8
hope this helps!
8 0
3 years ago
Other questions:
  • What is 212 tens / 10
    8·2 answers
  • Solve the equation.<br><br> 5x + 6 = 2(2x – 3)<br><br> what dose x =
    15·2 answers
  • Which product is negative
    15·1 answer
  • Find the radius of each circle.<br> 17) circumference = 62.8 mi
    15·1 answer
  • (7s – 8s⁴ – 3) + (-4s – 6s⁴ – 2s²)
    5·2 answers
  • What is 8 1/8 plus 9 1/8
    15·2 answers
  • What happens to the value of the expression 2t/t as t decreases
    5·1 answer
  • What is the exponential form of the expanded form below?<br> 4.4.4.4.4.4
    9·1 answer
  • GIVE U BRAINLYIST IF U GET CORRECT ANSWER AND EXTRA POINTS
    15·2 answers
  • What is the result of 72 divided by 12? 6 8 9 12
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!