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
umka2103 [35]
3 years ago
9

Evaluate. 21 + } + (-)) - Enter your answer as a mixed number in simplest form in the box.

Mathematics
1 answer:
andrew-mc [135]3 years ago
3 0

Evaluate: 2(1/4) + 2/5 ÷ (-1/2) - 1/4

⇛9/4 + 2/5 ÷ (-1/2) - 1/4

Take the LCM of the 4 and 5 is 20.

Again, 2 and 4 is 4.

⇛[(54+8)/20] ÷ [(-2 - 1)/4]

⇛62/20 ÷ (-3/4)

⇛62/20 × 4/-3

⇛62/{5*(-3)}

⇛62/-15.

You might be interested in
−1/2(7z+4)+15(5z−15) =
pishuonlain [190]

Answer:

69

Step-by-step explanation:

your momhrhrhfhfjhfif

5 0
3 years ago
Read 2 more answers
Someone please help me!
Lerok [7]

Answer:

x = -3

Step-by-step explanation:

When you take the cube root of -27, -3 is your answer. To double check, just cube -3 (or -3 x -3 x -3) and you can see you get -27.

6 0
3 years ago
Read 2 more answers
The bill from your plumber was $134. The cost for labor was $32 per hour. The cost for materials
galben [10]

Answer:

2.75 hours, or 2 hours and 45 minutes

Step-by-step explanation:

Subtract the cost of materials from the bill, 134-46=88.

Then, for every hour, he charges 32, so divide the difference by 32, 88/32.

5 0
3 years ago
Solve for the roots using the quadratic formula 4x^2 + 101 = 36x
Dima020 [189]

Answer:

use a website

Step-by-step explanation:

it is a great algebraic calculator

symbolab.com

3 0
3 years ago
The sum of three consecutive integers is 168. Find the smallest integer, Fill in the blank below with the integer written as a n
natulia [17]
If it’s an integer than you divide by the lcd so it would be 2
4 0
3 years ago
Other questions:
  • What is 90 divided by .36
    6·1 answer
  • 14+7×54÷6-7 work for the problem
    12·2 answers
  • 59.2 inches to feet.
    13·1 answer
  • Is this perpendicular, parallel, or neither?<br>y=4x+5 <br>2x+8y=16
    10·1 answer
  • Which of equation represents a function? A. x2 + y2 = 9 B. {(4, 2), (4, –2), (9, 3), (9, –3)} C. x = 4. 2x + y = 5
    13·1 answer
  • Explain the distance formula. Then use it to calculate the distance between A(1,1) and B(7,-7).
    11·1 answer
  • To the nearest hundredth, what is the value of x? <br> 36.08<br> 41.51<br> 47.81<br> 72.88
    8·1 answer
  • Can someone help me out, I am gonna fail :(
    6·1 answer
  • Hi<br> The greatest glory in living lies not in never falling, but in rising every time we fall
    14·2 answers
  • 2. Sandi can run for one hour at a constant speed of 348 cm per second. Marci can run for one
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!