Answer:
Step-by-step explanation:
you create 15 per 5 hours. or 15 centerpieces/5 hours or 3 centerpieces per hour. To make 42, if you make 3 per hour, you would divide 42 by 3, getting 14. It will take 14 hours to make 42 centerpieces.
Sam traveled 20 miles in 3 hours.
Sam walked part of the distance at a speed of 4 miles per hour.
Sam rode his bicycle for the remaining distance at a speed of 12 miles per hour.
How many hours did sam spend walking?
How many hours did sam spend biking?
The number of hours that Sam spends walking is 1 hour. And the number of hours that Sam spends biking is 2 hours.
What is speed?We know that the speed formula
Speed = Distance/Time
Let 'x' and 'y' be the time when he walks and when he biking. Then the equations are given as,
x + y = 3 ...1
4x + 12y = 20 ...2
From equations 1 and 2, then we have
4(3 - y) + 12y = 20
12 - 4y + 12y = 20
8y = 8
y = 1 hour
The value of 'x' is calculated as,
x + 1 = 3
x = 2 hours
More about the speed link is given below.
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Find the inverse function in slope -intercept form (mx + b) f(x) = - 5x + 15
Answer:
Pick either point (-6, 24) or (7,-15) and plug the x and y values into the above equation along with the value of m to get b.
Step-by-step explanation:
In a card game, Angel losses 8 points twelve rounds in a row. Which integer - represents the total number of point he lost in all twelve rounds?
Answer:
96
Step-by-step explanation:
12 x 8 = 96
I need help with this
Answer:
It'll take 5 months until they have the same amount of hats
Answer:
5 months
Step-by-step explanation:
This system of equations has been set up in a way that should be easier for you to do. If h=m+11, doesn't that mean you could substitute m+11 for h?
You can start by writing m+11=3m+1 then solve it as any normal equation and you get 5!
ASAP PLZ HELP
A dolphin keeps up with a boat for a distance of 51 miles for 3 hours. What is the dolphin’s average speed?
Hi im in 5th grade an I really need help on my math homework. The question is "Which decimal rounded to the nearest tenth is 0.9"? Please help me I would be very happy if you could. :) -Brooklyn
Answer:
0.85, 0.86, 0.87, 0.88 or 0.89
Step-by-step explanation:
This is because, to round up a number to the nearest, the number after that number must be greater than or equal to 5. So, any of 0.85, 0.86, 0.87, 0.88 or 0.89 can be rounded to the nearest tenth since the digit after the 8 is greater than or equal to 5. So, 0.85 rounds to 0.9 to the nearest tenth, 0.86 rounds to 0.9 to the nearest tenth, 0.87 rounds to 0.9 to the nearest tenth, 0.88 rounds to 0.9 to the nearest tenth and 0.89 rounds to 0.9 to the nearest tenth.
So, any of 0.85, 0.86, 0.87, 0.88 or 0.89 can be rounded to the nearest tenth is 0.9
Lorraine writes the equation shown. x squared + y minus 15 = 0 She wants to describe the equation using the term relation and the term function. The equation represents .
Answer:
The equation represents: A relation and a function
Step-by-step explanation:
A function is said to be a relation; however, the relation does not have to function. For a relation to result in a function, then every input gives an important output. Thus; the given information x² + y - 15 = 0 can be re-written as:
y = - x² + 15
Similarly, the equation typically illustrates a relation as well. Consequently, suppose we replace any x-value for x, then the one possible output will be for y. Hence, that is also a function.
Answer:
A
Step-by-step explanation:
The answer is A
Graph y= 2/7x helpppppppp
The graph of the given equation is plotted below.
The given equation is y=2/7 x.
What is the graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them. The length of the lines and position of the points do not matter.
Graph the line using the slope and y-intercept, or two points.
Slope: 2/7
y-intercept: (0, 0)
Plot the points (0, 0) and (7, 2) on the graph
Hence, the graph of the given equation is plotted below.
To learn more about the graph visit:
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Drag each tile to the correct box. Not all tiles will be used. Arrange the steps to solve the equation . Simplify to obtain the final radical term on one side of the equation. Raise both sides of the equation to the power of 2. Apply the Zero Product Rule. Use the quadratic formula to find the values of x. Simplify to get a quadratic equation.
Answer:
Raise both sides of the equation to the power of 2
Raise both sides of the equation to the power of 2 again
Simplify to get a quadratic equation.
Use the quadratic formula to find the values of x.
Step-by-step explanation:
The radical equation is expressed as:
[tex]\sqrt{x+3} - \sqrt{2x-1} = -2[/tex]
The following steps are to be followed to calculate x:
Step 1: Raise both sides of the equation to the power of 2.
[tex](\sqrt{x+3} - \sqrt{2x-1})^2 = (-2)^2\\x+3 - 2\sqrt{x+3}\sqrt{2x-1}+(2x-1) = 4\\ - 2\sqrt{x+3}\sqrt{2x-1}+x+3+2x-1 = 4\\ - 2\sqrt{x+3}\sqrt{2x-1}+3x+2 = 4\\ - 2\sqrt{x+3}\sqrt{2x-1} +3x-2 = 0\\[/tex]
Step 2: Raise both sides of the equation to the power of 2 again
[tex](-2\sqrt{x+3}\sqrt{2x-1})^2 = (2-3x)^2\\4(x+3)(2x-1) = (2-3x)^2\\[/tex]
Step 3: Simplify to get a quadratic equation.
[tex]\\4(2x^2-x+6x-3) = 4-12x+9x^2\\4(2x^2+5x-3) = 4-12x+9x^2\\8x^2+20x-12 = 4-12x+9x^2\\x^2-32x+16 = 0[/tex]
Step 4: Use the quadratic formula to find the values of x.
x = 32±√32²-4(16)/2
A helicopter is flying directly above a submarine. The helicopter is 100 feet about sea level. The submarine is 250 below the sea level. b. What is the distance between the helicopter and the submarine? (1 pt) Write the equation you use to show (justify) your answer. (2 pts)
Answer:
350feetStep-by-step explanation:
We want to find the height between the helicopter and the submarine
let us use the water as reference
therefore the given information
helicopter= 100 feet about sea level.
submarine = 250 feet below the sea level.
Therefore the distance between the helicopter and the submarine is given as
=100+250
=350feet
how do I solve the ratio of somthin
A park charges $11 for one round of miniature golf and a reduced fee for each additional round played. If
Tom paid $46 for 6 rounds of miniature golf, what is the reduced fee for each additional round played?
The reduced fee for each additional round played is $
Plzzz help plzzz help plzzz help plzzz help
Answer:
4$ off every time because if you take 6×11 you get 66 from the total without anything off and then subtract 66-46 and you get 20 so you take 20÷ 5 because 1 round was his first and there was no discount on the first round so your answer is 4$ everytime
Find the slope of the line y = 1/3x + 1/7
Intro:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
This is the slope formula [tex]y=mx+b[/tex] if you know what each letter stands for you know which one is slope.
Each Letter Meanings:
y stands for the y-value in the order pairs on the line.
m stands for the rate of change, AKA the slope of the line.
x stands for the x-value in the order pairs on the line.
b stands for the y-intercept.
_________________________________________________________
So now you should have figured out that [tex]\frac{1}{3}[/tex] is the slope of the line.
Answer:
slope is 1/3
first point y intercept is 1/7
its a non linear function
(-3/7,0) (0,1/7)
Step-by-step explanation:
Every fraction with a non-zero denominator or divisor is a _________.
A. Integer
B. decimal
C. rational number
D. quotient
Answer:
No estoy seguro, intenta preguntarle a tu profesor
Step-by-step explanation:
Every fraction with a non-zero denominator or divisor is a rational number.
What is a rational number?"A rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator 'p' and a non-zero denominator 'q'."
Given, a fraction has a non-zero denominator.
Therefore, the fraction is a rational number for any possible case.
An integer itself a rational number.
A decimal number is always a rational number.
A quotient is the result of dividing one number with the another.
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need answers to 13 and 15. please help.
Answer:
13) 11
15) 16/61 or 0.262295082
I need help with math I am dumb so pls help me if you can
Answer:
4/10 x 10 = 40/100
Step-by-step explanation:
I have done this one before.
I hope this helps!
Answer:
4/10 x 10 = 40/100
Step-by-step explanation:
I had queation today
If j(x) = x^2 + 1, find j(a + 1)
Answer:
[tex](a + 1) ^{2} + 1[/tex]
[tex]a ^{2} + 2a + 2[/tex]
Simplify the expression |1/12 - 5/6| - (2/5 + 1/10)
Answer:
Step-by-step explanation:
=|-3/4|-(2/5+1/10)
=0.75-(2/5+1/10)
=0.75-(2/5+1/10)
=0.75-1/2
=0.25
Answer:
1/4
Step-by-step explanation:
i did this question on time4learning 2022
Find the value of x.
28)
Answer:
x=28
Step-by-step explanation:
4/28=k so 1/7=k
A hockey player needs to shoot a puck 55 meters from his current location to his opponent's goal to score a goal. After the shot, the puck is 120 centimeters from his opponent's goal. If there are 100 centimeters in 1 meter, how many meters did the puck travel?
Answer:
The puck traveled a distance of 5.38 meters or 5,380 meters
Step-by-step explanation:
Here, we want to know the distance the puck traveled.
The distance from the player’s current location to the opponent’s is 55 meters
Since there are 100 centimeters in a meter, then
55 m= 55 * 100 = 5,500 centimeters
Now, we are told that the puck landed just 120 cm from the opponent’s goal
The distance traveled by the puck will be;
5,500 cm - 120 cm = 5,380 cm
The puck traveled a distance of 5,380 cm or 5.38 meters (5,380 cm to meters is calculated by just dividing by 100)
CAN SOMEONE HELP PLS !!! I really need the the help so can someone pls help me
Part A: The sun produces 3.9 ⋅ 1033 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 1.55 ⋅ 107 seconds? (5 points)
Part B: Which is the more reasonable measurement of the diameter of a human hair:
1.8 ⋅ 10−2 mm or 1.8 ⋅ 102 mm? Justify your answer. (5 points)
Answer:
Multiply the bases and add the exponents.
Step-by-step explanation:
Remember your rules of exponents that show you how to do this. When multiplying you add the exponents. A large exponent makes a large number and a negative exponent makes a very small number.
Answer:
Hi;)
Step-by-step explanation:
Solve for x in terms of a: 32 + 5 = a
Answer:
A =37
Step-by-step explanation:
Because you should just do the 32 + 5 since it is equal to A therefore, whatever the answer is should be what A is equal to. So: 30 + 2 + 5 = 37.
distributive Property for 16 + 20
(0.4k3 – 2.5k) – (2.4k3 + 3k2 – 1.2k) =
Answer:
–2k3 – 3k2 – 1.3k
Step-by-step explanation:
Hope this helped, Have an amazing day!!
Answer:
its C (what the guy said above)
Step-by-step explanation:
At a school, 60% of the sixth-grade students said that hip-hop is their favorite kind of music. If 210 sixth-grade students prefer hip hop music, how many sixth-grade students are at the school?
Answer:
350 6th grade students
Step-by-step explanation:
From the question
At a school, 60% of the sixth-grade students said that hip-hop is their favorite kind of music.
Total number of sixth graders that love hip-hop = 210
Let the total number of students in the school be represented as: x
Hence,
60% × x = 210
60/100 × x = 210
Cross Multiply
60x = 210 × 100
x = 210× 100/60
x = 350 students.
Therefore, the total number of sixth graders is 350 .
help usa test prep i will mark as brainliest to whoever answers first
Answer:
a
Step-by-step explanation:
Donna finished her chemistry assignment in 1/8 hour. Then she completed her history assignment in 2/3 hours. What was the total amount of time Donna spent doing these two assignments? write your answer in simplest form.
Answer:
3/11
Step-by-step explanation:
You add both of the fractions so 2+1 is equal to 3 and 8+3 is equal to 11. You can not simply any further from 3/11
A printer is printing photos. For every 6 photos, the printer takes 2 minutes.
Complete the table below showing the number of photos and the time it takes to print them.
Answer:
Next to 6 is 9, next to 15 is 27, and next to 3 is 5
Step-by-step explanation:
If you imagine 6 photos for every 2 minutes as a fraction and simplify it, the answer to this would be 3 photos for every 1 minute (basically 3/1). By using this unit fraction, you'll see that you're supposed multiply the amount of minutes by 3, or you can divide the # of photos by 3.
For 3 mins, you multiply that by 3 to get 9 photos.
For 9 mins, you multiply that by 3 to get 27 photos
For 15 photos, you divide that by 3 to get 5 photos.
Ok, have a Spooky Halloween!
Twelve large bottles of water cost $9. How many bottles can you buy for $3? What is the cost per bottle of water? How much would 7 bottles of water cost?
Step-by-step explanation:
Given data
cost of 12 bottle = $9
How many bottle can $3 buy.
Given that $9 can buy 12 bottles
therefore $3 would by x bottles
cross multiply we have
9x=12*3
9x=36
divide both sides be 9
x=36/9
x=4 bottles
The cost per bottle is
9/12= $3/4
= $0.75 per bottle
if one bottle cost $0.75
the 7 bottles will cost =0.75*7
=$5.25
Answer:
4
Step-by-step expl
Since 12 bottles cost $9 then by doing
12/3=X
X=4
=$4
15 yards to 18 yards
Answer: The distance between 15 yards to 18 yards is 3 yards.
Step-by-step explanation: