A group of children each rode a horse to the bottom of the canyon. They had 20 eyes and 30 legs between them, how many horses were there
You can calculate that, since all children and horses have two eyes, and that children have two legs and horses have four, and the total number of eyes is 20 and the total number of legs is 30, there were 5 children and 5 horses.
Explanation:This problem can be solved using basic algebra. We need to count the numberOfChildren and numberOfHorses in a manner where each child and each horse contribute two eyes and with each child having two legs while each horse has four legs.
Let's make two assumptions:
numberOfChildren = number of children numberOfHorses = number of horsesSo, we can write two equations according to the question:
The total number of eyes = 20 (which implies that numberOfChildren + numberOfHorses = 10, because each creature, whether child or horse, has two eyes)The total number of legs = 30 (which implies that 2*numberOfChildren + 4*numberOfHorses = 30, as each child has two legs and each horse has four)By solving these two equations, we find that the numberOfChildren = 5 and numberOfHorses = 5.
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45 brainliest pts.
Plz answer...
Answer:
3360
Step-by-step explanation:
45 plus 50 plus 55 plus 60 equals 3360 !
In Andrew’s Furniture Shop, he builds bookshelves and tables. Each type of furniture takes him about the same time to make. He figures he has time to make, at most, 25 pieces of furniture by this Saturday. The materials for each bookshelf cost him $20.00 and the materials for each table cost him $45.00. He has $675.00 to spend on materials. Andrew makes a profit of $60.00 on each bookshelf and a profit of $100.00 for each table. How many of each piece of furniture should Andrew make to maximize profit? A. define variables B. Write the constraint inequalities that represent the situation, and explain what each of the inequalities represents. (You should have four inequalities.) C. What are the vertices of the feasible region?
We have defined two variables, bookshelves (b) and tables (t), to reflect the number of each that Andrew can make. The constraints representing time and cost are given by two inequalities and these produce a feasible region of possible combinations of bookshelves and tables. Within this region, Andrew can determine the combination that gives maximum profit.
Explanation:Let's define the variables: Let's say 'b' is the number of bookshelves Andrew makes and 't' is the number of tables he makes.
B. The constraint inequalities are: b + t <= 25 due to the time constraint, and 20b + 45t <= 675 due to the cost constraint. These inequalities represent the limit on the number of pieces he can make due to time and the limit due to money available to buy materials.
C. In this system of inequalities, the feasible region would be determined by finding the intersecting points (vertices) of our inequalities. The feasible region is the set of all points that satisfy all the constraints of the problem.
To ascertain the maximum profits, Andrew should calculate his profit for each possible combination of bookshelves and tables within the feasible region to find the combination with the maximum profit.
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What is the product?
6(x – 1)^2
6(x^2 – 1)
(x + 1)(6x – 1)
(x – 1)(6x – 1)
(6.03) what is the coefficient of the variable in the expression 6-4x-8+2
Connie is a nurse and works a 12 hour shift if she worked 4 hours what fraction of her shift does she still have to work
PLEASE PLEASE HELP ME 25 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Washington longed to retire to his fields at Mount Vernon. But he soon realized that the Nation under its Articles of Confederation was not functioning well, so he became a prime mover in the steps leading to the Constitutional Convention at Philadelphia in 1787. When the new Constitution was ratified, the Electoral College unanimously elected Washington President.
Which provides the best objective summary of this excerpt?
A.)
Even though he was unanimously elected to be president, Washington wished he could retire to Mount Vernon instead.
B.)
The Constitution probably would not have been ratified if Washington had retired early at Mount Vernon instead of attending the Constitutional Convention.
C.)
Washington played a major role in the events that led to the ratification of the Constitution and was elected to be the country’s first president.
D.)
Even though he wished to retire, George Washington knew that the nation needed help, so he put a lot of effort into helping to develop the Constitution. Eventually, the Constitutional Convention took place in Philadelphia in 1787, and the Constitution was approved. Then, Washington was elected president of the country. The entire Electoral College voted for him.
D
It provides concise information which is derived from the question.
Tricia is baking a key lime pie for her friends. She is baking the pie in a pie dish that is 9 inches in diameter. What is the circumference of her pie?
Answer: 28.26 inches
Step-by-step explanation:
We know that the circumference of a circle is given by :-
[tex]\text{Circumference}=\pi d[/tex], where d is the diameter of the circle.
Given: The diameter of pie dish (d)= 9 inches
Then the circumference of the pie dish is given by :_
[tex]\text{Circumference}=\pi (9)\\\\\Rightarrow\text{Circumference}=(3.14)(9)\text{Circumference}=28.26\ inches[/tex]
Each edge of a cube measures 4.7 in. What is the surface area of the cube? Enter your answer, as a decimal, in the box.
The measure of an edge of a cube = 4.7 in
We have to determine the surface area of the cube.
The surface area of a cube is the area of the six squares that cover it. The area of one square is [tex] a^{2} [/tex]. Therefore, area of six squares = [tex] 6a^{2} [/tex].
Surface area of cube = [tex] 6a^{2} [/tex] , where a is the edge of a cube
Therefore, Surface area of this cube
= [tex] 6a^{2} [/tex]
= [tex] 6 \times (4.7)^{2} [/tex]
= 132.54 square inches.
Therefore, surface area of the cube is 132.54 square inches.
A family's vacation destination is 850 miles from their home. They travel by car 6 hours on the first day of their trip. Their average speed is 45 mph. The next day they travel 7 hours, averaging the same speed. How many miles are left for the family to travel?
Answer:256
Step-by-step explanation:
Answer:
265 miles.
Step-by-step explanation:
A chef mixed oil and vinegar to make a salad dressing she made enough dressing to fill 6 plastic bottles each bottle has 4/8 cup of olive oil and 2/8 cup of vinegar what was the total amount in cups of salad dressing the chef made?
Namely is putting up a fence in her yard to make a dog run the dog run is 20 feet long and 15 feet wide how much fencing does she need for the dog run
Why is it more difficult to use repeated addition when multiplying two mixed numbers than it is to use repeated addition when you are multiplying a mixed number by a whole number?
The reason why it is more difficult to use repeated addition when multiplying two mixed numbers than it is to use repeated addition when you are multiplying a mixed number by a whole number is:
There is a whole number of groups of the mixed number. Ex: 1 1/2 x 3 would be 3 groups of 1 1/2, so 1 1/2 + 1 1/2 + 1 1/2.What is Multiplication?This refers to the mathematical operation that involves to find the product of a set of numbers.
What is Mixed Number?This refers to the type of number that is made up of a whole number and a proper fraction, for example,2 [tex]1/4[/tex].
With this in mind, if we have mixed numbers like 1 1/2 x 2 1/2, and we were to use repeated addition to multiply them, we would have 2 whole groups of 1 1/2, but then we would need to represent 1/2 group which requires multiplying or dividing first.
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How many times can 3 go into 9
if a triangle has side lengths of 22,32,and 55 units what type of triangle is it
acute,obtuse,right,no solution
A triangle with side lengths of 22, 32, and 55 units is an obtuse triangle.
Explanation:A triangle with side lengths of 22, 32, and 55 units is an obtuse triangle.
To determine the type of triangle, we can use the Pythagorean theorem. If the sum of the squares of the lengths of the two shorter sides is greater than the square of the length of the longest side, then the triangle is obtuse. In this case, 22^2 + 32^2 = 484 + 1024 = 1508, which is greater than 55^2 = 3025, so the triangle is obtuse.
An obtuse triangle is a triangle with one angle greater than 90 degrees. In this case, the angle opposite the longest side will be greater than 90 degrees.
Solve the equation
5m-10n=20
This year Cornell’s class took one more than three times as many field trips as last years class. This year Cornell’s class took a total of 7 trips. How many trips did his class take last year
To find the number of field trips Cornell's class took last year, we set up the equation 3x + 1 = 7, where x represents the number of trips last year. Solving this, we find that Cornell's class took 2 field trips last year.
The question involves a basic mathematical equation to determine the number of field trips taken by Cornell's class last year. Since this year Cornell's class took 7 trips, and this number is one more than three times the amount of the previous year, we can set up the equation as x being the number of trips taken last year:
3x + 1 = 7
To find x, subtract 1 from both sides of the equation:
3x = 7 - 1
3x = 6
Now divide both sides by 3 to solve for x:
x = 6 / 3
x = 2
So, Cornell's class took 2 field trips last year.
Please help and explain
sos
thanks in advance
How many times larger is the value 0.75 than the value 0.0075? Please show how to solve the problem.
The value 0.75 is 100 times larger than the value 0.0075.
To solve the problem, we need to determine how many times larger 0.75 is compared to 0.0075. This can be done by dividing the larger number by the smaller number and then simplifying the result.
First, write both numbers as fractions to make the division easier:
[tex]\[ 0.75 = \frac{75}{100} \][/tex]
[tex]\[ 0.0075 = \frac{75}{10000} \][/tex]
Now, divide the fraction representing 0.75 by the fraction representing 0.0075:
[tex]\[ \frac{0.75}{0.0075} = \frac{\frac{75}{100}}{\frac{75}{10000}} \][/tex]
When dividing fractions, we multiply the first fraction by the reciprocal of the second fraction:
[tex]\[ \frac{\frac{75}{100}}{\frac{75}{10000}} = \frac{75}{100} \times \frac{10000}{75} \][/tex]
The 75s in the numerator and denominator cancel out:
[tex]\[ \frac{75}{100} \times \frac{10000}{75} = \frac{10000}{100} \][/tex]
Now, simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor, which in this case is 100:
[tex]\[ \frac{10000}{100} = \frac{100 \times 100}{100} = 100 \][/tex]
a salesperson has averaged $120 in commissions for each of the past ten days. For how many days must her commissions average $160 in order to bring her overall average to %150?
What is the median of the numbers 8.7, 8.7 8.9, 9.0, 9.1, 9.2? I know I'm supposed to find the middle number, but there's an even amount of numbers here. So I'm supposed to find the average of the two middle numbers, which are 8.9 & 9.0. What does it mean when it says I'm supposed to "find the AVERAGE of the two middle values"?
Find the volume of the rectangular prism
23 in.3
297 in.3
318 in.3
159 in.3
Plz help!!
Please help.
Frank is buying his first car and is stuck on what color it should be. He has to choose between three shades of green, two shades of blue or r two shades of purple. What is the probability he will choose a green car?
if you know that 7 + 2i is a root of a polynomial function ,what is another root of that same function?
Answer: Another root of the same function is 7-2i.
Step-by-step explanation: Given that 7+2i is a root of a polynomial function.
We are to find the another root of the same function.
We know that
if a complex number a+ib is one of the roots of a polynomial function f(x), then the conjugate a-ib is another root of the same polynomial f(x).
According to the given information, the conjugate of 7+21, that is, 7-2i is another root of the same polynomial function.
Thus, another root of the same function is 7-2i.
Two angles are supplementary. If one measures x and the other angle measures x+ 30, what is the value of x ?
Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 Which of the following should Robert's box-and-whisker plot look like?
I need help on this one please
A computer company uses the linear model y = -21x + 13,082 to predict the decline in sales of a computer after it has been on the market more than one year. If x is the number of months after the first year and y is the number of computers sold during that month, how many computers will be sold 11 months after the first year?
which one is it. please answer