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
GREYUIT [131]
3 years ago
8

Need help on steps (3/7-2/3)+(4/5)(2/3)

Mathematics
1 answer:
Elan Coil [88]3 years ago
6 0
\bf \left( \cfrac{3}{7}-\cfrac{2}{3} \right)+\left( \cfrac{4}{5} \right)\left( \cfrac{2}{3} \right)\implies \stackrel{LCD~21}{\left( \cfrac{3}{7}-\cfrac{2}{3} \right)}+\left( \cfrac{4}{5} \cdot \cfrac{2}{3} \right)

\bf {\left( \cfrac{3\cdot 3-7\cdot 2}{21} \right)}+\left( \cfrac{4\cdot 2}{5\cdot 3} \right)\implies \left( \cfrac{9-14}{21} \right)+\left( \cfrac{8}{15} \right)
\\\\\\
\stackrel{LCD~105}{\cfrac{-5}{21}+\cfrac{8}{15}}\implies \cfrac{-5\cdot 5+8\cdot 7}{105}\implies \cfrac{-25+56}{105}\implies \boxed{\cfrac{31}{105}}
You might be interested in
During the work week, a person worked 55 hours, for how many hours do they get Overtime Pay?
Zanzabum
15 extra hours they get overtime
6 0
3 years ago
Original price: $23.37<br>with tax : $24.91<br>what is the sales tax percentage​
Marina86 [1]

Answer:

6.6% = tax rate

Step-by-step explanation:

The first step is to find out how much was paid in tax

24.91 - 23.37 =1.54

The tax is 1.54

The tax is the original price * tax rate

1.54 = 23.37 * tax rate

Divide each side by 23.37

1.54/23.37 = tax rate

.065896448= tax rate

Changing to percent form

6.6% = tax rate

8 0
4 years ago
What is the volume of a rectangle prism that has a height of 3 inches and a base of 14 square inches
lawyer [7]

Answer:

42 inches cubed

Step-by-step explanation:

The volume of a rectangular prism is base times height.

In this case the base is 14 and the height is 3

(14)(3)=42

3 0
2 years ago
School A has 480 students and 16 classrooms. School B has 192 students and 12 classrooms.
boyakko [2]

Answer:96

Step-by-step explanation:

A; 480/16 = 30 students per classroom

B: 192/12 =16 students per classroom

we need x such that \frac{480-x}{16} = \frac{192+x}{12}

which means

(480-x )* 12 should be equal to (192+x) * 16

5,760 - 12x = 3,072+16x

5,760 - 3,072 = 12x + 16x

2,688 = 28x

x = 96

3 0
3 years ago
Me Kaplan is ordering 30 flash drives for the students in his class. If each one costs $11.95 how much will he pay
Svetllana [295]

30 \times 11.95 = 358.5
6 0
3 years ago
Other questions:
  • Properties of the Rombus<br> How many sides that r equal has?
    10·1 answer
  • A ball is dropped from a height of 24 m. With each bounce, the ball reaches a height that is half the height of the previous bou
    6·1 answer
  • Gcmf and factor form of 5x²-10x³​
    11·1 answer
  • A bag has 8 blue, 7 red, and 10 green marbles. What is the probability of drawing a blue or red marble?
    13·1 answer
  • Help pls, write these words in ABC order
    6·1 answer
  • How do you determine if a pair of lines are parallel? For example, the lines -3x+8y=24 and 3x-8y=7?
    11·1 answer
  • Please help!!! i have been doing bad in math right now .
    10·1 answer
  • Plz help!! I need it ASAP
    6·1 answer
  • HELP PLEASE QUICKKKKKK
    5·1 answer
  • Find the values of x and y
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!