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
Marrrta [24]
3 years ago
7

Subtract (2/7 -5/21 ) from the sum of 3/4, 5/7 and 7/12​

Mathematics
1 answer:
olga55 [171]3 years ago
6 0
2/7 - 5/21 = 6/21 - 5/21 (find common denominator first, then subtract)
6/21 - 5/21 = 1/21

3/4 = 63/84
5/7 = 60/84
7/12 = 49/84

63/84 + 60/84+ 49/84 = 172/84
172/84 - 4/84 = 168/84

The answer is 168/84, or 2. Hope this helped!
You might be interested in
The length of a rectangle exceeds the width by 2 cm . If the diagonal is 10 cm long , find the width of the rectangle .
Rainbow [258]
Width= 6 cm
Length = 8cm

4 0
3 years ago
Find the distance between the origin and the point (-12,5).<br> A. 12<br> B. 7<br> C. 6<br> D. 13
Sedbober [7]

Answer:

The answer is 13!!!!........

5 0
2 years ago
Read 2 more answers
Circles M and K are congruent, QR is congrent to LN. Find the length of QR
Novosadov [1.4K]

Given QR is congrent to LN and QR = 4x + 2 and LN = x + 7.

So, QR = LN

Hence, we can set up an equation as following:

4x + 2 = x + 7

4x + 2 - x = x + 7 - x Subtract x from each sides.

3x + 2 = 7 By simplifying.

3x + 2 - 2 = 7 - 2 Subtract 2 from each sides.

3x = 5

\frac{3x}{3} =\frac{5}{3} Divide each sides by 3 to isolate x.

So, x=\frac{5}{3}

Next step is to plug in x=\frac{5}{3} in QR = 4x+2 to get length of QR.

So, QR = 4(\frac{5}{3})+2

=(\frac{20}{3})+\frac{2}{1} Since 2 can be written as 2/1.

By multiplying the second fraction by the common denominator 3.

=(\frac{20}{3})+\frac{2*3}{1*3}

=(\frac{20}{3})+\frac{6}{3} By simplifying the second fraction.

=(\frac{26}{3})

So, QR=\frac{26}{3}

5 0
3 years ago
What is the discriminant of the quadratic equation 0 = 2x2 + 3x – 5?
Goshia [24]
49 would be the answer!
4 0
3 years ago
Read 2 more answers
What is the akis of symmetry <br> y=2x^2-8x+1
nika2105 [10]

Answer:

2

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • A restaurant uses 4.375 pounds of cheese for every pizzas. At this rate, how many pounds of cheese are used per pizza?
    9·1 answer
  • Which ordered pair is a solution of 5x + 4y = 18?<br> O (-3,6)<br> O (2,4)<br> O (8,2)<br> O (-2,7)
    10·1 answer
  • What would be the next number in the pattered 64, 16,4,1
    14·2 answers
  • I need some help lol
    14·1 answer
  • Can someone please help?
    15·1 answer
  • I need help with this​
    15·1 answer
  • Find the area of a trapezoid please help im so lost
    9·1 answer
  • Square root of -25 minus square root of -9 plus square root of -81
    10·1 answer
  • Pls help me I’m failing lolz :)
    10·1 answer
  • Need help finding slope, x-intercept, and y-intercept
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!