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
gogolik [260]
3 years ago
8

Convert the following equation into simultaneous equation and solve

Mathematics
1 answer:
almond37 [142]3 years ago
6 0

Answer:

x=4/5

y=1/5

Step-by-step explanation:

X/y=4...(1)

1/x+1/y=1/xy...(2)

From (1) make x the subject of formula

x=4y...(3)

Substitute (3) into (2)

I/4y+1/y=1/4y^2

Let the LCM be 4y

1+4/4y=1/4y^2

Cross multiply

5(4y^2)=4y

20y^2=4y

Divide both sides by 4y

5y=1

Divide both sides by 5

y=1/5

Substitute y=1/5 into(3)

x=4(1/5)

x=4/5

You might be interested in
3. What is the radius of a circle whose area is 64π cm squared?
nataly862011 [7]

Answer:

Area = 64π

Area \: = \pi {r}^{2}Area=πr

2

64 \: \pi \: = \pi {r}^{2}64π=πr

2

{r}^{2} = \dfrac{64\pi}{\pi}r

2

=

π

64π

{r}^{2} = 64r

2

=64

r \: = \: \sqrt{64} = 8r=

64

=8

Radius = 8 units

Finding the Diameter -

Diameter = Radius x 2 = 8 x 2 = 16 .

\bold{Diameter \: is \: 16 \: units}Diameteris16units

8 0
2 years ago
a six ounce bag of rice makes 7 servings at that rate find out how many ounces of noodles of 15 servings to the nearest ounces
Crank
6:7
?:15
It's some crazy number I worked out but: 12.86 is the best thing I could get lol
7 0
3 years ago
A biologist is comparing the growth of a population of flies per week to the number of flies a bullfrog will consume per week. S
Lubov Fominskaja [6]

Realize that since 2x and 3x - 1 are equal to each other, they are also equal to y. This means that we can craft two equations, y = 2x and y = 3x - 1.


When you want to solve a systems of equations via a graph, you need to plot both equations on a graph and determine the x- and y-value of where the lines intersect. In this case, we would plot both y = 2x and y = 3x - 1. These lines intersect at the point (1, 2).


Since we are trying to find the day the bullfrog will be able to eat the entire population, or x, we are going to use the x-value of our point as our answer. Thus, our answer is 1 day.

3 0
3 years ago
Quiz Questions
gavmur [86]
1. 6:3
2. 6:2
3. 3:18
4:5:6
5:13
6:x
7:x
8: check
9:check
10: x
6 0
2 years ago
PQ=20,RS=20 and the measure of ARC PT= 35 Find the measure of arc RS
Oksi-84 [34.3K]
If RS arc is = to the RS central angle then the RS arc would be 20 degrees, but if the RS is on the Circumference then the RS arc would be 40.
4 0
2 years ago
Other questions:
  • HELP URGENT 20 PTS!!!! Describe how to sketch a normal curve with a mean of 50 and a standard deviation of 2. Indicate how you w
    14·1 answer
  • If sinx = 0.3, and x is in Quadrant III, then what is the value of cosx?
    8·2 answers
  • A construction crew is lengthening a road. Let L be the total length of the road (in miles). Let D be the number of days the cre
    5·1 answer
  • For what value of x is the rational expression below undefined<br> 2x+4 / x-7
    5·1 answer
  • Write a ratio for this number
    15·2 answers
  • PLEASE HELP QUESTION IS WORTH 16 POINTS I WILL GET AN F IF INCORRECT
    14·1 answer
  • Given that BCD and BCA form a straight angle, if BAC measures 40 degrees and BCD measures 75 degrees, then the measure of ABC is
    9·1 answer
  • What is the value of the first term in the following arithmetic sequence?
    13·1 answer
  • Shring's dining room table is round and has a radius of 4.5 feet. What is the tabletop's area?
    15·1 answer
  • Find the missing length. The triangles in each pair are similar?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!