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
Vaselesa [24]
3 years ago
13

What is -1 7/8 + -2 1/4? Please explain why and a step by step :).

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
8 0

9514 1404 393

Answer:

  -4 1/8

Step-by-step explanation:

Many people find it easier to factor out -1, then do the addition. The fractions need a common denominator before they can be added. A suitable denominator that is a multiple of both 4 and 8 is 8.

The fraction 1/4 = (1/4)(2/2) = (1·2)/(4·2) = 2/8.

__

So, the problem can be rewritten as ...

  -(1 7/8 +2 2/8)

  = -((1+2) +(7/8 +2/8))

  = -(3 +9/8)

The fraction 9/8 is an improper fraction equal to 8/8 +1/8 = 1 1/8. Then the sum is ...

  -(3 +1 1/8) = -4 1/8

You might be interested in
Chec<br> Match each data relationship with a type of correlation.
AleksandrR [38]

I've attached an image showing the data relationship.

Answer:

1) y does not change based on changes in x: no-correlation

2) y tends to increase as x increases: positive correlation

3) y tends to decrease as x increases: negative correlation

Step-by-step explanation:

1) y does not change based on changes in x: This means that there is no correlation between y and x since change in x doesn't affect y.

2) y tends to increase as x increases: This implies positive correlation because the output increases with increase in input.

3) y tends to decrease as x increases: This implies negative correlation because the output decreases with increase in input values.

5 0
3 years ago
Read 2 more answers
Put the following equation of a line into slope-intercept form, simplifying all fractions. 12x+9y=18
stira [4]

Answer:

y = -4/3x + 2

Step-by-step explanation:

Slope intercept form is y = mx + b.

Rearrange the equation into slope intercept form by isolating y:

12x + 9y = 18

9y = -12x + 18

Divide each side by 9:

y = -4/3x + 2

So, the equation is y = -4/3x + 2

6 0
4 years ago
In January,the low temperature in Denver was -12 degrees,and the low temperature in Chicago was -17 degree.which statement is tr
nadezda [96]
The answer is C ( ask why if you want)
8 0
3 years ago
Use the Distributive Property to simplify the expression. 4(c + 3)
yKpoI14uk [10]

Answer:

4 times c is 4c and 4 times 3 is 12 so the answer would be 4c + 12

Step-by-step explanation:

6 0
3 years ago
What are some things that might be necessary to know in order to solve problems involving quadratic regression?
saveliy_v [14]

Answer:

When given a set of data, we can use our graphing calculator to generate the quadratic regression equation. This is the equation that best fits a set of data, using a quadratic model.

Step-by-step explanation:

got a 100%

8 0
3 years ago
Other questions:
  • Sam and three friends shared a sandwich equally. How many equal parts were there?
    6·2 answers
  • Can someone help with this math question please
    12·1 answer
  • 1/125, 1/25, 1/5, find the sequence
    5·1 answer
  • PLEASE PLEASE HELP ASAP
    14·1 answer
  • Space space space space
    10·1 answer
  • You estimate that there are 40 marbles in a jar. The actual amount is
    13·1 answer
  • Rachel brings cookies to her dance class one day. She gives 3/5 of them to her friends Karen, Tommy, and Gail. If she gave them
    6·2 answers
  • Plz help this is my second time doing this assignment
    10·1 answer
  • Please answer <br>Find the product.<br>(7m^2-3m-7)(m^2-7m-6)​
    10·1 answer
  • Queetlon 10 or 15
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!