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
Lina20 [59]
2 years ago
9

Help plz find the equation​

Mathematics
1 answer:
tatiyna2 years ago
6 0

                                              Question # 1

Step-by-step Explanation:

Given

\frac{1}{2}\div \frac{2}{3}

solving

\frac{1}{2}\div \frac{2}{3}

\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}

=\frac{1}{2}\times \frac{3}{2}

\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}

=\frac{1\times \:3}{2\times \:2}

\mathrm{Multiply\:the\:numbers:}\:1\times \:3=3

=\frac{3}{2\times \:2}

\mathrm{Multiply\:the\:numbers:}\:2\times \:2=4

=\frac{3}{4}

Therefore, completing the blanks:

\frac{1}{2}\div \frac{2}{3}=\frac{1}{2}\times \frac{3}{2}=\frac{3}{4}

                                             Question # 3

Step-by-step Explanation:

Given

\frac{2}{5}\div \frac{3}{4}

solving

\frac{2}{5}\div \frac{3}{4}

\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}

=\frac{2}{5}\times \frac{4}{3}

\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}

=\frac{2\times \:4}{5\times \:3}

\mathrm{Multiply\:the\:numbers:}\:2\times \:4=8

=\frac{8}{5\times \:3}

\mathrm{Multiply\:the\:numbers:}\:5\times \:3=15

=\frac{8}{15}

Therefore, completing the blanks:

\frac{2}{5}\div \frac{3}{4}=\frac{2}{5}\times \:\frac{4}{3}=\frac{8}{15}

                                                Question # 5

Step-by-step Explanation:

Given

\frac{3}{4}\div \frac{5}{7}

solving

\frac{3}{4}\div \frac{5}{7}

\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}

=\frac{3}{4}\times \frac{7}{5}

\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}

=\frac{3\times \:7}{4\times \:5}

\mathrm{Multiply\:the\:numbers:}\:3\times \:7=21

=\frac{21}{4\times \:5}

\mathrm{Multiply\:the\:numbers:}\:4\times \:5=20

=\frac{21}{20}

Therefore, completing the blanks:

\frac{3}{4}\div \frac{5}{7}=\frac{3}{4}\times \:\frac{7}{5}=\frac{21}{20}

You might be interested in
Three men are trying to hold a ferocious lion still for the veterinarian. The lion, in the center,is wearing a collar with three
Andre45 [30]
The answer 
<span>the third rope to counterbalance Sam and Charlie is F
and vectF +vectF1 +vectF2 =vect0
let's consider axis
y'y  </span>vectF = -F
      vectF 1= F1cos60
      vectF 2= F2cos45
-F = -F1cos60-F2co45
so F= F1cos60+F2co45= 350x0.5+400x0.7=457.84 pounds
4 0
2 years ago
A man standing near a building notices trhat the angle of elevation to the top of the buiilding is 64. he then walks 240 feet fa
trasher [3.6K]
See the picture attached to better understand the problem
 we know that
in the right triangle ABC
tan 64°=AB/AC------> AB=AC*tan 64°-----> AB=x*tan 64°---> equation 1

in the right triangle ABD
tan 43°=AB/DA----> AB=DA*tan 43°---> AB=(240+x)*tan 43°---> equation 2

equate equation 1 and equation 2
x*tan 64°-=(240+x)*tan 43°---->x*tan 64=240*tan 43+x*tan 43
x*[tan 64-tan 43]=240*tan 43-----> x=240*tan 43/[tan 64-tan 43]
x=200.22 ft

AB=x*tan 64----> AB=200.22*tan 64-----> AB=410.51 ft

the answer is
410.51 ft

3 0
3 years ago
A square ceiling has an area of 360 square feet. Alex wants to put molding around the entire perimeter of the ceiling. Approxima
Blababa [14]

Answer:

Option C is correct

76 feet

Step-by-step explanation:

Area of square(A) is given by:

A =s^2

where, s is the side of the square.

As per the statement:

A square ceiling has an area of 360 square feet.

⇒A = 360 square feet.

then;

s^2 = 360

⇒s = \sqrt{360} =18.973666

Perimeter(P) of square is given by:

P = 4s

then;

P = 4 \cdot 18.973666 = 75.894664 \approx 76 ft

Therefore, 76 feet molding does he need.

7 0
3 years ago
PLZ Help Victoria used a probability simulator to pull 3 colored marbles from a bag and flip a coin 50 times. The results are sh
zmey [24]

the probability of getting tails up is 30/50 or most likely

the probability of getting a blue marble is 18/5 or least likely

5 0
2 years ago
Which exponential function is represented by the values in the table?
svlad2 [7]

Here we use the equation

y = a(b)^x

Taking points (0,4), (1,2)

Substituting the point (0,4) , we will get

4 = a(b)^0&#10;\\&#10;4 = a(1)  \\&#10;a =4

Substituting (1,2) we will get

2 = 4 (b)^1&#10;\\&#10;2/4 = b&#10;\\&#10;b = 1/2

So we have

a = 4, b = 1/2

Therefore , required equation is

y = 4(1/2)^x

7 0
3 years ago
Read 2 more answers
Other questions:
  • The epicenter of an earthquake is the point on Earth’s surface directly above the earthquake’s origin. A seismograph can be used
    14·1 answer
  • the table tells us that 4 students had no siblings 5 students had one sibling, 14 students had two siblings and so on
    9·1 answer
  • School X and School Y play each other in a competition. School X has eight more points than School Y. School X has three times a
    11·2 answers
  • A certain fraction has a value of 15. the denominator is four more than three times the numerator. what is the fraction?
    7·1 answer
  • To increase and decrease an amount by 7%, what single multiplier would you use?
    6·2 answers
  • The diagram shows TUV. Which term describes point W?
    6·1 answer
  • Someone pls pls help me with this question I’ll mark brainliest
    13·1 answer
  • What is -1/9(5g-3)+2/9g Simplified
    11·1 answer
  • The first term in a sequence is 3. the term to term rule is add 5. is 97 at term in the sequence? give a reason why.
    13·1 answer
  • Find mGM if KP = PL and GH = 36 ft.​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!