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
Monica [59]
3 years ago
5

7 1/4 × 2²+(8 1/2-2)÷3giving brainliest

Mathematics
2 answers:
Maru [420]3 years ago
5 0

Answer:

31 1/6

Step-by-step explanation:

7 1/4 × 2²+(8 1/2-2)÷3

Using PEMDAS

Parentheses first

7 1/4 × 2²+(6 1/2)÷3

Then exponents

7 1/4 × 4+(6 1/2)÷3

Changing the mixed numbers to improper fractions

7 1/4 = (4*7+1)/4 = 29/4  and ( 2*6+1)/3 = 13/2

29/4 × 4+(13/2)÷3

Multiply and divide from left to right

29 + 13/2÷3

Using copy dot flip

29 + 13/2 * 1/3

29 + 13/6

Changing back to a mixed number

13/6 = 12/6 + 1/6 = 2 1/6

29 + 2 1/6

Add

31 1/6

lawyer [7]3 years ago
3 0

Answer:

187/6

Step-by-step explanation:

Simplify the following:

(7 + 1/4) 2^2 + (8 + 1/2 - 2)/3

2^2 = 4:

(7 + 1/4) 4 + (8 + 1/2 - 2)/3

Put 7 + 1/4 over the common denominator 4. 7 + 1/4 = (4×7)/4 + 1/4:

(4×7)/4 + 1/4 4 + (8 + 1/2 - 2)/3

4×7 = 28:

(28/4 + 1/4) 4 + (8 + 1/2 - 2)/3

28/4 + 1/4 = (28 + 1)/4:

(28 + 1)/4×4 + (8 + 1/2 - 2)/3

28 + 1 = 29:

29/4×4 + (8 + 1/2 - 2)/3

29/4×4 = (29×4)/4:

(29×4)/4 + (8 + 1/2 - 2)/3

(29×4)/4 = 4/4×29 = 29:

29 + (8 + 1/2 - 2)/3

Put 8 + 1/2 - 2 over the common denominator 2. 8 + 1/2 - 2 = (2×8)/2 + 1/2 + (2 (-2))/2:

29 + ((2×8)/2 + 1/2 + (2 (-2))/2)/3

2×8 = 16:

29 + (16/2 + 1/2 + (2 (-2))/2)/3

2 (-2) = -4:

29 + (16/2 + 1/2 + (-4)/2)/3

16/2 + 1/2 - 4/2 = (16 + 1 - 4)/2:

29 + ((16 + 1 - 4)/2)/3

16 + 1 = 17:

29 + ((17 - 4)/2)/3

| 1 | 7

- | | 4

| 1 | 3:

29 + (13/2)/3

13/2×1/3 = 13/(2×3):

29 + 13/(2×3)

2×3 = 6:

29 + 13/6

Put 29 + 13/6 over the common denominator 6. 29 + 13/6 = (6×29)/6 + 13/6:

(6×29)/6 + 13/6

6×29 = 174:

174/6 + 13/6

174/6 + 13/6 = (174 + 13)/6:

(174 + 13)/6

| 1 | 7 | 4

+ | | 1 | 3

| 1 | 8 | 7:

Answer: 187/6

You might be interested in
Help!!!Geometry chapter three
leonid [27]

Answer: 50

Step-by-step explanation:

3(50)-14=136

7 0
3 years ago
WILL AWARD BRAINIEST: Find the area of the shaded polygons below:
IRINA_888 [86]

Answer:

<h2>9 square units</h2>

Step-by-step explanation:

You can use the Pick's formula:

A=i+\dfrac{b}{2}-1

Where

i - the number of lattice points inside the polygon

b - number of lattice points on the border located on the perimeter of the polygon

From the picture we have:

i=5\\\\b=10

Substitute:

A=5+\dfrac{1}{2}\cdot10-1=5+5-1=10-1=9

4 0
3 years ago
Please help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!
marin [14]
A. F(x)= log(x-2)+3 its answer A, I graphed it on a graphing calculator
5 0
3 years ago
Read 2 more answers
The figure below shows two congruent triangular parks. What equation would help you to solve for the side length of BC and EF? E
Mrrafil [7]
2x - 3 = x + 5
and then solve as an algebra equation

3 0
3 years ago
Read 2 more answers
Identify the constant of proportionality from the table.<br> xy<br> 3 6<br> 4 8<br> 7 14<br> 9 18
Nina [5.8K]
The answer would come out to be 5
8 0
1 year ago
Other questions:
  • Math 7 Grade 7
    13·2 answers
  • The temperature at 1 pm was 88 degrees. By 4 pm, the temperature was 72 degrees. Determine the constant rate of change of the te
    12·1 answer
  • Which values of xwould make a polynomial equal to zero if the factors of the
    9·2 answers
  • What is bigger 30% or 6/10
    15·2 answers
  • Will someone please ansewer please
    12·1 answer
  • The PRODUCT of 25 and x.
    9·1 answer
  • There are 52 playing cards in a standard deck. Each card is assigned to one of four​ suits: diamonds,​ hearts, spades, or clubs.
    13·1 answer
  • The recreation center is hiring counselors for summer camp. They need four counselors for every 25 campers. If there are 140 cam
    14·1 answer
  • a dvd has a diameter of 16 centimeters.what is the the area of the dvd?round the answer to the nearest hundredth.use 3.14 for n
    5·2 answers
  • Two​ trains, Train A and Train​ B, weigh a total of 526 tons. Train A is heavier than Train B. The difference of their weights i
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!