Answer:
Un modelo matemático es una representación simplificada, a través de ecuaciones, funciones o fórmulas matemáticas
Step-by-step explanation:
When building a house, the number of days required to build is inversely proportional to with the number of workers. One house was built in 147 days by 4 workers. How many days would it take to build a similar house with 42 workers?
Answer:
14
Step-by-step explanation:
[tex]147 \times 4 \div 42 = 14[/tex]
It would take 14 days to build a similar house with 42 workers
What is the fundamental principle of multiplication?Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
We are given that the number of days required to build is inversely proportional to with the number of workers.
One house was built in 147 days by 4 workers.
So,
147 x 4 = 588
Now the days to build a similar house with 42 workers
588/ 42 = 14
Learn more about multiplications;
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x + 5 = 29
solve for x :
solve for y:
Answer:
valor de x: 24
valor de y:5
Answer:
x is 24 but wdym solve for y?
Step-by-step explanation:
1. Bryan randomly selects 2 items from his closet. What is the probability that he selects 2 pairs
of pants?
Everyone keeps on ignoring me): please help will mark brainliest):
Answer:
Step-by-step explanation:
They are testing whether you remember the basic 30,60,90 degree triangle side relationship. The ratio of sides for this triangle are 1 opposite the 30 degree angle, square root of three opposite the 60 degree angle and a hypotenuse of 2 opposite the 90 degree angle.
x/2=2/1
x=4/1=4
bottom answer choice
x/4=3^(1/2)/1
x=4(3^(1/2))
third answer choice
A mountain climber climbed down a cliff 20 metres at a time. He did this 3 times in one
day. What was the overall change in his elevation?
Answer: The climbers overall change in elevation was -60 meters
Hope this helps. Let me know if you need anything else.
You decide to make and sell bracelets. The cost of your materials is $84. You charge $3.50 for each bracelet.
c. You will break even when the cost of your materials equals your income. How many bracelets must you sell to break even?
Answer:
You would need to sell 28 bracelets.
Step-by-step explanation:
28 x $3.50 = $85.48
27 bracelets is too little, 27 x $3.50 = $82.35
So it's 28
What is 17 = 3x + 2 ?
Answer:
x = 5
Explanation:
Subtracting 2 from both sides of the equation
17 − 2 = 3x +2 − 2
15=3x
Dividing both sides by 3
15/3 = 3x/3
5 = x
Answer:
x=5
Step-by-step explanation:
How much must be added to each of the three number 1, 11, and 23 so that together they form a geometric progression?
Answer:
49
Step-by-step explanation:
Let the three numbers be a1, a2, a3
Let the number to be added to form a geometric progression = x
a1 = 1 + x ; a2 = 11 + x ; a3 = 23 + x
For a geometric progression :
a2 = a1 * r
a2 = (1+x)r
11+x = (1+x)r - - (1)
r = (11+x) / (1+x) ---(1)
a3 = a2 * r
a3 = (11+x)r
23+x = (11+x)r - - -
r = (23+x) / (11+x) - - (2)
Equate (1) and (2)
(11+x) / (1+x) = (23+x) / (11+x)
(11+x) * (11+x) = (23+x) * (1+x)
121 + 22x + x² = 23 + 24x + x²
121 + 22x + x² - x² - 24x - 23 = 0
98 - 2x = 0
-2x = - 98
x = 98 / 2
x = 49
Solve the equation: 1/2(4x - 16) = 14
what is x
x = 11
x = 3.75
x = -2
x = 5
Answer:
x = 11Step-by-step explanation:
1/2(4x - 16) = 14
2x - 8 = 14 {add 8 to both sides}
2x = 22 {divide both sides by 2}
x = 11
Wendy wants to run 3 miles. Each lap around the track at her school is mile.
Wendy wants to figure out how many laps she needs to run.
Answer:
Wendy needs to run 3 laps to run 3 miles.
Hope this helps. :)
Can you explain to me how you got it
Answer:
Vertical Angles
Step-by-step explanation:
They are vertical angles because they are directly across from each other
Simplify by combining like terms.
12+5t−4+15t+1
Answer:
9+20t
Step-by-step explanation:
Look at the terms and see which has t and which is a number when you see like terms, add them or subtract them together to get like terms.
what is the slope (2,6) (-1, -5)
Dario is finding the percent of change from the original price of $75 to new price of $125.
Answer:
66.66666% increase (6 goes on forever, can be rounded to 66.67%)
Step-by-step explanation:
The change is 125 - 75 = 50, so it increased by 50/75 = 2/3 = 0.666666... = 66.6666%
1x +y = -7
1x - y = 3
cap
Step-by-step explanation: gxetuciv
nolur cözebilirmisiniz
Answer:
vvhfdefg
is c60
what is 892.42 rounded tents place
892.4
May Nilbin Be With You
POSSIBLE POINTS: 0.83
On Saturday, Breanne drove 25 miles. On Sunday, she
drove 125 miles. The number of miles Breanne drove on
Sunday is what percent of the number of miles she drove
on Saturday?
%
Answer: 500%
Step-by-step explanation:
125 / 25 = 5 = 500%
We can check this answer by doing 5×25 = 125 so our answer is correct.
I am not a professional, I am simply using prior knowledge!
Note- It would mean the world to me if you could mark me brainliest!
what is the range of possible sizes for x?
Answer:
0.5 < x < 15.5
Step-by-step explanation:
Triangle Inequality Theorem
Let y and z be two of the side lengths of a triangle. The length of the third side x cannot be any number. It must satisfy all the following restrictions:
x + y > z
x + z > y
y + z > x
Combining the above inequalities, and provided y>z, the third size must satisfy:
y - z < x < y + z
The two side lengths given in the triangle of the figure are y=8.5, z=8.0, thus the possible values of x lie in the interval
8.5 - 8.0 < x < 8.5 + 8.0
0.5 < x < 15.5
HELP ME WITH THIS PLEASE
Answer:
2x+11=25
7
Step-by-step explanation:
I think of a number (x) and double it (multiply it by 2) and then add 11
put this all together and get
2x+11=25
Solve for x
2x=14
x=7
Answer:
2x+11=25
Step-by-step explanation:
x=7
14 4/9+ 25 1/6+ 7 11/18=
Answer:
47 2/9
hope this help :)
Answer:
47 2/9
Step-by-step explanation:
( 14 + 25 + 7) + ( 4/9 + 1/6 + 11/18)
46 + 11/9
46 + 1 2/9
47 2/9
Solve 3x - 5 = 16
Write your solution starting with x= .
Answer:
x = 7
Step-by-step explanation:
3x - 5 = 16
3x = 16 + 5
3x = 21
x = 21/3
x = 7
algebra work please help needed
Answer:
64
Step-by-step explanation:
Hope this helps! :)
Answer:
64 is correct hope it helped have a good day mate
PLEASE HELP ME OLEASE UT URGENT !
In the figure, j∥k and m∠1 = 63°.
What is the m∠4?
Enter your answer in the box.
°
Answer:
∠ 4 = 117°
Step-by-step explanation:
∠ 1 and ∠ 4 are alternate angles and supplementary, sum to 180°, then
∠ 4 = 180° - 63° = 117°
Answer: The answer is 117
Step-by-step explanation: I just took the Quiz hehe lol
PLEASE HELP i suck at math
What are the coordinates of the image of A(2, 5) after it is rotated
180° clockwise about the origin?
Solve for X
Thank you
Answer:
X is equal to 5
Step-by-step explanation:
The tangents of a circle is always equal, which means 2x + 7 = 5x - 8. After you solve this equation, you will get that X = 5.
Select the car that gets the best gas mileage per
gallon of gas.
A. Car A can travel 19 miles using 0.7 gallons of gas.
B. Car B can travel 21 miles using 0.6 gallons of gas.
C. Car C can travel 15 miles using 0.4 gallons of gas.
D. Car D can travel 35 miles using 1 gallon of gas.
The actual amount of water in a test tube is 680 mL but when Tim measured it he erred by 3% too high. What measurement did Tim get
Answer:
Step-by-step explanation:
Answer:
700.4mL is the answer
Step-by-step explanation:
3. Which of the following is equivalent to the expression 8^5 x 8^2
Answer:
2097152 is the answer to your question
Answer:
2,097,152
Step-by-step explanation:
8 to the 5th power is 32,768 and 2 to the 2nd is 64
We multiply those two numbers, and we get 2,097,152
Hope this is right, and helps! Please mark Brainliest!!
