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
Mandarinka [93]
3 years ago
6

2 sides equations

Mathematics
1 answer:
lapo4ka [179]3 years ago
6 0

Answer:

15x-8x-5x=48

3x=48

or X=16

4=4y+2y

or 4= 6y

or 4/6=y

or y=2/3

4-5x= 3x

or 4=5x+3x

or 4=8x

or 4/8=X

or X=2

2x=2x-5+8

or,2x= 2x-13

or 2x+2x=13

or 4x=13

or X= 13/4

or X =3.25

4y=4y+9-9

or 4y=4y+0

or 4y-4y=0

or 0=0

You might be interested in
I need some help with the question
vagabundo [1.1K]

To solve this you first need to turn your mixed numbers into improper fractions. to do this for 9 \frac{4}{5} you multiply the denominator (5) by the whole number (9) to get 45 and then add that to the numerator (4) to get your new fraction \frac{49}{5}.

You repeat this process with 3\frac{1}{2} to get \frac{7}{2}.

Now that you have two fractions you can multiply by the opposite reciprocal. To do this you flip the second fraction and change the division sign to a multiplication sign like so \frac{49}{5} * \frac{2}{7}

Then, you just multiply the fractions by multiplying the numerators to get 98 and multiplying the denominators to get 35.

Now, to simplify \frac{98}{35} * \frac{2}{7} you first divide both the numerator and denominator by 7 to get \frac{14}{5} * \frac{2}{7}.

Finally, you can take 10 out of the numerator to make 2\frac{4}{5} * \frac{2}{7}

8 0
4 years ago
"Polio has a basic reproduction number (R0) = 5. The vaccine is very good; in fact, polio vaccine is 99% effective when two foll
yulyashka [42]

Answer:

0.81

Step-by-step explanation:

Herd immunity or community immunity is the immunity seen after vaccination of a population wherein the large portion of the population becomes immune to the pathogen. It depends on vaccine efficacy and vaccination rate.

The reproduction number R_o is a factor indicating the number of people that can be infected by the person with the disease. If Ro=5 then one infected person can infect 5 people with Polio virus.

V_c= q_c/E

V_c= Vaccine coverage

q_c= herd immunity threshold

E= Vaccine efficacy= 99%=0.99

q_c=1-1/R_o= 1-1/5=0.8

V_c= q_c/E

V_c= 0.8/0.99= 0.808= 0.81

Thus, 81% coverage or vaccination for Polio is required to stop spread of Polio in the population.

5 0
3 years ago
A construction company is starting to build a new house. They need to put tape around the site to begin. The new home site is 20
jonny [76]

Answer:

20 meters

Step-by-step explanation:

A construction company is starting to build a new house. They need to put tape around the site to begin. The new home site is 20 meters wide by 40 meter long rectangle. The company already has 100 meters of tape. How much more tape does the company need to tape the site?

We would have to find the perimeter of this rectangle

Perimeter fo a rectangle = 2L + 2W

In the above question,

L = Length = 40 m

W = Width = 20 m

Hence:

Perimeter = 2(40m) + 2(20m)

= 80m + 40m

= 120m

Hence, he would need 120 meters of tape

From the above Question, the company already has 100m

Hence, the amount of tape that the company needs more =

120m - 100m = 20 m

5 0
3 years ago
Squash and water is mixed in the ratio 1:3 if 2 litres of drink is made, how much water is used?
finlep [7]

Answer:

<h3>1 litre should be correct answer.</h3>
6 0
3 years ago
Read 2 more answers
Kerry bought a bag dog food for $37.99. if sales tax is 7.6%, how much did she pay in tax
Arturiano [62]
She paid 2.88 in tax
8 0
3 years ago
Other questions:
  • Please help!!!!!!!!!!!!
    7·1 answer
  • What is the slope intercept form for the equation of the line provided?
    5·1 answer
  • what words in a real world problem indicate that it will be represented by an inequality rather than by an equation? Explain. SO
    8·1 answer
  • Please help with this question.
    8·2 answers
  • What’s the surface. area
    5·1 answer
  • Christina's office recycled a total of 65 kilograms of paper over 5 weeks. How many weeks will it take Christina's office to rec
    14·1 answer
  • Need help with matrices :/
    15·1 answer
  • Need help on both 7 and 8, please help i’m losing my mind and it’s 3 am
    11·1 answer
  • Can any please help me with this god bless!
    8·1 answer
  • Answer? to this problem please
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!