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
Ilya [14]
2 years ago
7

15 masons can renovate a hall in 20 days. How many masons will renovate the hall in 12 days?.

Mathematics
1 answer:
Nastasia [14]2 years ago
5 0

Answer:

9

Step-by-step explanation:

Use rule of three

15 => 20

x => 12

x=\frac{12*15}{20}

x = 9

You might be interested in
The population, P, of a small island was 6380, correct to the nearest 10. Complete the statement about the limits of P. ……………………
Lady bird [3.3K]

Answer:

6375 ≤ P < 6385

Step-by-step explanation:

When rounding to the nearest 10, the unit value is either rounded to 1 and added to the tens value (if value is greater than or equal to 5) or rounded to 0 (if less Than 5)

Hence, the lower limit of a number p which gives 6380 when rounded to the nearest ten would be 6375 ;

The upper limit of the number p in other to give 6380 when rounded to the nearest 10 will be 6384 (< 6385)

8 0
3 years ago
Please answer this question. I’m giving brainliest. Both of them, please :)
Solnce55 [7]

Answer: where's the question

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x
OleMash [197]

ANSWER



x=1.39 to the nearest hundredth.



EXPLANATION



We have the equation,



0=2x^2+3x-8



Which can be rewritten as



2x^2+3x-8=0

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

ax^2+bx+c=0


a=2,b=3,c=-8


The quadratic formula is given by;


x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}


We now substitute all the values in to the formula;


x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}

We simplify to obtain;

x=\frac{-3\pm\sqrt{9+64}}{4}


x=\frac{-3\pm\sqrt{73}}{4}


We now split the plus or minus sign to obtain;


x=\frac{-3-\sqrt{73}}{4}


This implies that;


x=-2.89

Or

x=\frac{-3+\sqrt{73}}{4}


This will evaluate to;


x=1.39

Hence, the positive solution rounded to the nearest hundredth is

x \approx 1.39

6 0
3 years ago
Read 3 more answers
Your princpal has decided to provide a treat to everyone in your grade before thanksgiving break-ice cream bars! One box contain
Assoli18 [71]

Answer:

8 boxes approx

Step-by-step explanation:

Step one:

given data

One box contains 48 bars

Required

The number of boxes needed for a total of 338 students if each person is to get at least one bar.

Step two:

this can be gotten by dividing 338 by the number of the bar in a box

= 338/48

=7.04

=8 boxes approx

He needs to purchase at least 8 box

4 0
3 years ago
Which of these are propositions? What are the truth values of those that are propositions?
Natasha2012 [34]

Answer:

c) There are no black flies in Maine -> False

e) The moon is made of green cheese -> False

Explanation:

A proposition is a statement that poses an idea that can be True or False.

  • Do not pass go, is not a proposition is an order, and there is not an answer to that statement.
  • What time is it? Is not a proposition is a question and it's response goes beyond True or False.
  • There are no black flies in Maine is indeed a proposition because is a statement that can either be True or False.
  • 4 + x = 5 is not a proposition because is a statement with an infinite number of answers, in contrast, 4 + 1 = 5 is a proposition because is either True or False.
  • The moon is made of green cheese is a proposition because is a statement that can either be True or False.
  • 2 n ≥ 100 is not a proposition because is a statement with an infinity number of answer and is not clear whether is True or False, in contrast, 2 ≥ 100 is a proposition because is either True or False.
3 0
3 years ago
Other questions:
  • Find an explicit rule for the nth term of the sequence. 9, 36, 144, 576, ...
    5·2 answers
  • Tom drops a coin from the top of a building. Tom is 90 meters from the ground when he drops the coin. A) What is the height of t
    11·1 answer
  • Triple the difference between 32 and 19
    15·2 answers
  • Find the area of the pink sector(s). The diameter is 8.
    7·1 answer
  • State of the triangles in each pair are similar. If so, State how you know they are similar and complete the similarity statemen
    8·1 answer
  • A pyramid shaped building is 873 ft tall with a square base that is 147 ft on each side. What is the volume of the​ pyramid?
    11·1 answer
  • Find sin θ if cos θ = 4/7 and θ in quadrant IV.
    11·1 answer
  • Suppose a quilt made up of squares has a length-to-width ratio of 5 to 4. The length of the quilt is 5x inches. The quilt can be
    6·1 answer
  • a florist makes 24 bouquets from 18 roses and 30 tulips. all of the bouquets will include both roses tulips. what do you notice
    13·1 answer
  • A coach ordered 1,565 flying discs for field day. The order is shipped in 5 boxes, with the same number of flying discs in each
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!