simplify:-5 1/4-(-7 1/2)

Simplify:-5 1/4-(-7 1/2)

Answers

Answer 1

Answer:

D. 2 1/4.

Step-by-step explanation:

First, convert both -5 1/4 and -7 1/2 into improper fraction. These would be -21/4 and -15/2.

-21/4 - (-15/2)

Two negatives in a row make a positive.

-21/4 + 15/2

Double both the numerator and denominator of 15/2 to make it have the same denominator as -21/4. This would 30/4.

-21/4 + 30/4

Put -21 + 30 over 4 to make it a single fraction.

(-21 + 30)/4

Add -21 and 30 to get 9.

9/4

Convert 9/4 into a mixed number: 2 1/4

The answer to -5 1/4 - (-7 1/2) is 2 1/4, which is D.


Related Questions

A square picture has a border 5 cm
wide. The picture area is 4/9 of the total
area. Find the area of the picture.​

Answers

Answer:

So area of square is: a^2

5^2=25cm^2

4/9 x 25 = 100/9

Area of picture is: 11.11 cm^2

Step-by-step explanation:

The area of the square will be equal to 11.11 square centimetres.


What is an area?

The space covered by the two-dimensional object on a plane is called as an area. The space covered by the square in a two-dimensional plane is called the area of the square.

The square is a quadrilateral having four sides and all the sides of the square are equal to each other.

The the area of the square is calculated as,

a² = 5²=25 cm²

The picture area is 4/9 of the total

area.

4/9 x 25 = 100/9

The area of the picture is: 11.11 cm²

To know more about an area follow

https://brainly.com/question/25092270

#SPJ2

Choose all the problems that you will solve by regrouping. A. 65 – 56 = ? B. 28 – 15= ? C. 16 – 6 = ? D. 74 – 38 = ?

Answers

Answer:

(a) and (d) will be done by regrouping

Step-by-step explanation:

Solution will be done by regrouping if unit term of term which is subtracted is greater then the term which subtracts.

(a) 65 -56, since the unit term of 65 is 5 and of 56 is 6

as the unit terms of 56 is greater than unit term of 65

Thus solution will be done by regrouping

⇒ 65 -56 = 9

(b) 28 -15, since the unit term of 28 is 8 and of 15 is 5

as the unit terms of 28 is greater than unit term of 15

Thus solution will not be done by regrouping

⇒ 28 -15 = 13

(c) 16 -6, since the unit term of 16 is 6 and of 6 is 6

as the unit terms of 16 is equal to unit term of 6

Thus solution will not be done by regrouping

⇒ 16 -6 = 10

(d) 74-38 , since the unit term of 74 is 4 and of 38 is 8

as the unit terms of 38 is greater than unit term of 74

Thus solution will be done by regrouping

⇒ 74-38 = 36

From 145 pounds to 132 pounds *
Percent decrease

Answers

Answer:

9%

Step-by-step explanation:

9%




Jshhshahshahahhwhahahahwhahahahhashshhswhshshhshshsbshsh

what is this equation in the simplest form 9/2 + 8/5 ?

Answers

Answer:

ok well i got it in multipul ways

Step-by-step explanation:

in fraction form its 61/10

in decimal for its 6.1

in mixed number form its 6  1/10

The answer is 6.1 as a decimal. 61/10 or 610 as a percentage.

A 22 inch TV costs $140.
It is on sale for 20% off.
How much will you save?

Answers

Answer:28 dollar

Step-by-step explanation: 140 x (20/100)= 28 dollar

140-28= 112 the price after the sale

Answer: you will save $28.

Step-by-step explanation:

To find a percent of a number you have to turn the percent into a decimal. For example you would turn 20% into 0.20 then multiply this by 140. After doing this you will find out that 20% of 140 is 28.

Hope this helps ;)

-7w²+2w if w=-4 i need the answer please!!!!!!!!!!!!!!

Answers

Answer:

-6,272

Step-by-step explanation:

-7 times -4 equals 28

28 to the power of 2 is 784

2 times -4 equals -8

-8 times 784 equals -6,272

Jamie bought a handbag for 20$, an umbrella for $5.99, and a scarf for $8.50. If the sales tax rate is 7% how much is the sales tax and the total cost of her purchase

Answers

Answer: $36.9043

Step-by-step explanation:

Given that :

Cost of handbag = $20

Cost of umbrella = $5.99

Cost of scarf = $8.50

Sales tax = 7% = 0.07

Sales tax = 0.07 * (20 + 5.99 + 8.50)

Sales tax = 0.07 * 34.49

Sales tax = $2.4143

Total cost of purchase :

Sales tax + cost of items

$2.4143 + $34.49

= $36.9043

calculate the rate of change

Answers

The rate of change (or slope) would be 1/2 or 0.5

What’s 1+1 I am so confused I am in middle school and this is the hardest question 10 points if u get it right lol

Answers

Answer:

It depends how you were taught. You could say it's 11 (eleven) or 2.

Answer:

I think 2 lol

Step-by-step explanation:

how much does a car weigh in ounces

Answers

Answer:

52 19271122222211111

Step-by-step explanation:

6+1=10

What is a quadratic equation? And how do you solve them?

Answers

Answer:

A quadratic equation is some thing like

(x+2)^2

or

(x+2)(x+5)

In order to solve them, the most basic method is the FOIL method

F-First

O-Outside

I-Inner

L-Last

So for example

(x+2)^2

Which is basically

(x+2)(x+2)

So the first is the 2 Xs

(x+2)(x+2)

x*x=x^2

The outer is the x and the 2,

(x+2)(x+2)

2*x=2x

Now the Inner which is the 2 and the x

(x+2)(x+2)

2*x=2x

And finally the last  which is the 2 and the second 2

(x+2)(x+2)

2*2=4

Now add them all up

X^2+2x+2x+4

Combine like terms

x^2+4x+4

There you have it

Do the same with every other quadratic equation

Find the domain and range of the function {(1,2) , (2,2) , (3,2) , (4,2)}

Answers

Answer:

Step-by-step explanation:

X-coordinates are domain and y-coordinates are range

Domain= {1,2,3,4}

Range= {2}

Answer:

domain: 1,2,3,4. range:2

Step-by-step explanation:

domain is the input aka the x- values, and the range is the output aka the y-values

Please help me, on small sentence.
Answer this question in Spanish:What "drama" is there in your life?

Answers

Answer:

no tengo ningún drama

Step-by-step explanation:

i dont have any drama !!!

What is b for x^2 -6x-3=0

Answers

Answer:

x = 3 + 2 sqrt3 Or 3 - 2 sqrt 3

Step-by-step explanation:

a cell phone company charges one $20 for the phone and then $35 a month for phone service another cell phone company charges 55 a month for phone service with a free phone after how many months will the phone services cost the same ​

Answers

After 1 month

20 + 35x = 0 + 55x

Beth adopted a kitten from the animal shelter. The adoption fee was $150. She also bought 4 bags of cat food on the way home. The total amount she spent was $185.84. What was the price for each bag of cat food

Answers

Answer:

$8.96

Step-by-step explanation:

total amount spent minus adoption fee is $35.84

divide this by the number of bags which is 4, your answer is $8.96

what is the ratio of y to x

Answers

Answer:

5:2

Step-by-step explanation:

can anyone help as soon as possible?

Answers

Answer:

The answer is C; x^4y^12z^16

What is the slope of the line?
4x -1 = 3y + 5
Choose 1 answer:

Answers

Answer:

The slope is 4/3

Step-by-step explanation:

Answer:

4/3

Step-by-step explanation:

rearrange into slope-intercept form

3y=4x-6

y=4/3x-2

Sorry this is non related to math, but how can you message someone it’s not letting me !!

Answers

Answer: click on their profile and send a message from those settings^^

Step-by-step explanation:

1. f(x) = 4x + 3x3
Is this a monomial,Binomial, or Trinomial

Answers

Answer:

It is a monomial

Step-by-step explanation:

4x+3x3=4x+9.

There is one variable the first power so therefore, it is a monomial.

Please help me on these 4 !

Answers

The answer is D no solution

When you plug (x,y) in answer choice A-C you do not get the right sum.

Please help me with this math problem if you can. You just say yes or no if it’s a square, rectangle, etc. and then give the reason why

Answers

Answer:

Step-by-step explanation:

B) rectangle because the diagonals are congruent

C) Diamond so no it isn't a square or rectangle due to no 90 degree angles

D)Square because the diagonals are perpendicular and congruent

Find the value of X!!!!!!!!

Answers

Try 116, you add up all the numbers and subtract by 180.

Which graph represents the proportional relationship given by the rule "y is 3 times the value of x"?

Please answer fast less than 5 min

Answers

Answer:

The fourth graph i.e. RIGHT BOTTOM GRAPH is correct which represents the proportional relationship given by the rule y = 3x.

Also, the correct graph is attached below.

Step-by-step explanation:

Given the rule

''y is 3 times the value of x".

It means

y = 3x

comparing with the slope-intercept form of the line equation

y = mx+b

where y is the slope and b is the intercept

so,

The slope of y = 3x will be: m = 3

The y-intercept of  y = 3x will be: b = 0

CHECKING THE 4TH GRAPH (THE RIGHT BOTTOM SIDE)

Taking two points

(0, 0)

(2, 6)

Finding the slope between (0, 0) and (2, 6)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

                =  [6 - 0] / [2 - 0]

                = 6 / 2

               = 3

Thus, the slope of the line = m = 3

We know that the value of y-intercept can be determined by setting x = 0, and determining the corresponding value of y.

From the graph, it is clear

at x = 0, y = 0

Thus, the y-intercept b = 0

Now, substituting m = 3 and b = 0 in the slope-intercept form of linear function

y = mx+b

y = 3x+0

y = 3x

Therefore, the fourth graph i.e. RIGHT BOTTOM GRAPH is correct which represents the proportional relationship given by the rule y = 3x.

Also, the correct graph is attached below.

Answer:

It's the bottom right graph.

Step-by-step explanation:

Can someone help me this question is different from the others

Answers

Answer:

15

Step-by-step explanation:

y= 15 because 5 x 15 is 75 and 51+54+75= 180

Answer:

y=15

Step-by-step explanation:

51+54=105

180-105=75

75÷5=15

y=15

OR

5y+51+54=180⁰

5y+51=126

5y=75

y=75÷5

y=15

The region R, shown shaded in the diagram, is bounded by four straight lines.
Write down the inequalities that define R.

for some reason i can’t remember how to do this (might be because i’m tired but i’m on my last homework question), can anyone help?

Answers

9514 1404 393

Answer:

1 ≤ y ≤ 30 ≤ x ≤ 2

Step-by-step explanation:

The boundaries in the vertical direction are the horizontal lines ...

  y = 3  (top boundary)

  y = 1  (bottom boundary)

The shaded region is between these lines, so y has values described by ...

  1 ≤ y ≤ 3

__

The boundaries in the horizontal direction are the vertical lines ...

  x = 0  (left boundary)

  x = 2  (right boundary)

The shaded region is between these lines, so x has values ...

  0 ≤ x ≤ 2

These are your inequalities.

_____

If you're plotting this on Desmos, you can use the relation ...

  max(abs(x-1), abs(y-2)) ≤ 1

Jonathan bought a box of stamps to start a collection. He has purchased the same number of stamps each week to add to the collection. The graph
shows the number of stamps Jonathan has at the end of each week. How many stamps were in the box Jonathan bought to start his collection?
Assume that the relationship between the two quantities is linear.
A. 216
B. 120
C. 96
D. 12

Answers

Answer:

120

Step-by-step explanation:

its where the graph starts

B. 120 is the answer!!!

what is 8029 times 89810

Answers

Answer:

721084490

Step-by-step explanation:

If 4/7 = 12 /? , then ? =
a) 7
b) 14
c) 21
d) 28

Answers

Answer:

21

Step-by-step explanation:

Multiply by 3 and find out.

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