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
Ainat [17]
2 years ago
9

3 1/4 + 4 3/8 - 5= ? Please show work

Mathematics
1 answer:
Snezhnost [94]2 years ago
5 0

Answer:

Step-by-step explanation:

3 1/4+4 3/8-5=

Convert the mixed number to an improper fraction

13/4+4 3/8-5

Convert the mixed number to an improper fraction

13/4 +35/8 -5

-5 +61/8

21/8

You might be interested in
Please someone help me out!!!!!!!!!!
german

Answer:

Step-by-step explanation:

6 0
2 years ago
(04.03 MC)
Vlad1618 [11]

Answer:

x = -2 and y = 3

{y = -3 x - 3, y = (3 x)/4 + 9/2} = x = -2 and y = 3

Step-by-step explanation:

Solve the following system:

{6 x + 2 y = -6

3 x - 4 y = -18

Express the system in matrix form:

(6 | 2

3 | -4)(x

y) = (-6

-18)

Solve the system with Cramer's rule:

x = -6 | 2

-18 | -4/6 | 2

3 | -4 and y = 6 | -6

3 | -18/6 | 2

3 | -4

Evaluate the determinant 6 | 2

3 | -4 = -30:

x = -6 | 2

-18 | -4/(-30) and y = 6 | -6

3 | -18/(-30)

Simplify -6 | 2

-18 | -4/(-30):

x = -1/30 -6 | 2

-18 | -4 and y = 6 | -6

3 | -18/(-30)

Simplify 6 | -6

3 | -18/(-30):

x = -(-6 | 2

-18 | -4)/30 and y = -1/30 6 | -6

3 | -18

Evaluate the determinant -6 | 2

-18 | -4 = 60:

x = (-1)/30×60 and y = -(6 | -6

3 | -18)/30

(-1)/30×60 = -2:

x = -2 and y = -(6 | -6

3 | -18)/30

Evaluate the determinant 6 | -6

3 | -18 = -90:

x = -2 and y = (-1)/30×-90

(-1)/30 (-90) = 3:

Answer: x = -2 and y = 3

___________________________________________

Solve the following system:

{y = -3 x - 3

y = (3 x)/4 + 9/2

Express the system in standard form:

{3 x + y = -3

-(3 x)/4 + y = 9/2

Express the system in matrix form:

(3 | 1

-3/4 | 1)(x

y) = (-3

9/2)

Write the system in augmented matrix form and use Gaussian elimination:

(3 | 1 | -3

-3/4 | 1 | 9/2)

Add 1/4 × (row 1) to row 2:

(3 | 1 | -3

0 | 5/4 | 15/4)

Multiply row 2 by 4/5:

(3 | 1 | -3

0 | 1 | 3)

Subtract row 2 from row 1:

(3 | 0 | -6

0 | 1 | 3)

Divide row 1 by 3:

(1 | 0 | -2

0 | 1 | 3)

Collect results:

Answer:  {x = -2 , y = 3

5 0
2 years ago
What number does the calculator display represent?
Tatiana [17]

Answer:

C

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Why does multiplying 37.4 times 0.01 give a product that is less than 37.4
Rudik [331]

Answer: When you multiply by 0.1 it is the same as dividing by 10. So it gives you a product that is less than 37.4.

6 0
3 years ago
Doing a quiz please help 30 points for the best answer
OverLord2011 [107]

Answer:

(X-7)^2+(y +3)^2 = 7

7 0
3 years ago
Other questions:
  • I cannot understand this can you guys help
    7·1 answer
  • Let X be the number of purchases that Fred will make on the online site for a certain company (in some specified time period). S
    15·1 answer
  • Please hurry i need this fast
    15·2 answers
  • What value, entered in the blank below, would make the two expressions equivalent? Expres
    8·1 answer
  • Amelia plans to open a compound interest savings account with a $22,000 deposit at a bank with an annual interest rate of 5.25%.
    13·1 answer
  • What is the ratio of the corresponding side lengths?<br> 4:9<br> 4:2<br> 26:26<br> 4.5:2
    13·2 answers
  • a) Everyone on the team talks until the entire team agrees on one decision. O b) Everyone on the team discusses options and then
    15·1 answer
  • Erin has 5 cans of juice and drinks 1/3 of a can daily. in how many days will she empty all the cans she has? I think it's 1/15
    14·1 answer
  • Aditi can walk 1.7 miles in half an hour. At the same constant speed, how many hours would it take her to walk 17 miles?
    7·1 answer
  • 45.348 to two decimal places
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!