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
Vlad1618 [11]
2 years ago
15

A meuseum added 18 painting to its collection in may. This is 20% of paintings the meuseum has in April. How many paintings did

the meuseum have in April ?
Mathematics
1 answer:
Alexus [3.1K]2 years ago
5 0

18 / x = 20 / 100

20x = 1800

x = 90

The museum had 90 paintings in April.

Hope this helps!! :)

You might be interested in
Please help me with 8 im so very stuck i know how to do those but nothing will factor into eachother
Kisachek [45]

Answer:

lol number 8 is x= i, -i , \frac{3}{4}, -4 so u are correct.

and number 7 is x=-\frac{1}{2} or \sqrt[5-i]\sqr\frac{23}{8}

Step-by-step explanation:

7 0
2 years ago
Write an inequality that represents the statement “x is at most –5 or at least 7.” A. x < –5 or x > 7 B. x > –5 or x &l
Afina-wow [57]
<span>C. x ≤ -5 or x ≥ 7 D.</span>
8 0
3 years ago
In a study relating the degree of warping, in mm, of a copper plate (y) to temperature in °C (x), the following summary statisti
elena-14-01-66 [18.8K]

Answer:

a)

y = 0.3035 + 0.0082x

b)

0.6315 mm

c)

x = 23.9634 °C

Step-by-step explanation:

a. Compute the least-squares line for predicting warping from temperature. Round the answers to four decimal places.

We need to find an equation of the form

y = b + mx

where m is the slope and b the Y-intercept.

The slope m can be computed with the formula

\bf m=\displaystyle\frac{\displaystyle\sum_{i=1}^n(x_i-\bar x)(y_i-\bar y)}{\displaystyle\sum_{i=1}^n(x_i-\bar x)^2}

Replacing the values in our formula (we will round at the end of the calculations)

\bf m=\displaystyle\frac{806.94}{98,775}=0.008169476

the Y-intercept b is computed with the formula

\bf b=\bar y-m\bar x

therefore we have

\bf b=0.5188-0.008169476*26.36=0.303452613

and the least-squares line rounded to 4 decimals would be

y = 0.3035 + 0.0082x

b. Predict the warping at a temperature of 40°C. Round the answer to three decimal places.

We simply replace x with 40 to get

y = 0.3035 + 0.0082*40 = 0.6315 mm

c. At what temperature will we predict the warping to be 0.5 mm? Round the answer to two decimal places

Here, we replace y with 0.5 and solve for x

0.5 = 0.3035 + 0.0082x ===> x = (0.5-0.3035)/0.0082 ===>

 

x = 23.9634 °C

6 0
3 years ago
The number of coffee bar on different streets of a NY city are 9, 18, 24, 9, 5,
Serjik [45]

Answer:

9

Step-by-step explanation:

The mode is the number that occurs most often. The number nine occurs 4 times.

7 0
1 year ago
Read 2 more answers
SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!!
pav-90 [236]

Answer:

-3f - 10

Step-by-step explanation:

-1 times 10 = -10

-1f times 3f = -3f

Sorry if this isn't right.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which statements are true regarding f(x)=10/x+5
    13·2 answers
  • Sam and Brett share £54 in the ratio of 5:4 how much does each person get
    12·1 answer
  • Please help! 
    14·1 answer
  • Name 5 decimal numbers that are between 4.78 and 4.79. Explain your answer.
    12·2 answers
  • Please help me ASAP!!!!!?
    11·1 answer
  • Can someoneeee helpppp
    14·1 answer
  • Please answer correctly !!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!
    7·1 answer
  • Mary has 200ml of hand sanitizer that is 15% alcohol. She mixes it with 200ml of a
    6·1 answer
  • Find the surface area of<br> the prism.
    7·1 answer
  • Multiply 1 over 2 multiplied by negative 1 over 4 . Which of the following is correct?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!